21207289320

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{1471}}^1\times {\mathrm{1907}}^1$

素因数の和:3405

約数の個数: 256

約数和(自身を含む): 80886988800

約数和(自身を除く): 59679699480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1471, 1512, 1890, 1907, 2520, 2942, 3780, 3814, 4413, 5721, 5884, 7355, 7560, 7628, 8826, 9535, 10297, 11442, 11768, 13239, 13349, 14710, 15256, 17163, 17652, 19070, 20594, 22065, 22884, 26478, 26698, 28605, 29420, 30891, 34326, 35304, 38140, 39717, 40047, 41188, 44130, 45768, 51485, 51489, 52956, 53396, 57210, 58840, 61782, 66195, 66745, 68652, 76280, 79434, 80094, 82376, 85815, 88260, 92673, 102970, 102978, 105912, 106792, 114420, 120141, 123564, 132390, 133490, 137304, 154455, 158868, 160188, 171630, 176520, 185346, 198585, 200235, 205940, 205956, 228840, 240282, 247128, 257445, 264780, 266980, 278019, 308910, 317736, 320376, 343260, 360423, 370692, 397170, 400470, 411880, 411912, 463365, 480564, 514890, 529560, 533960, 556038, 600705, 617820, 686520, 720846, 741384, 794340, 800940, 926730, 961128, 1029780, 1112076, 1201410, 1235640, 1390095, 1441692, 1588680, 1601880, 1802115, 1853460, 2059560, 2224152, 2402820, 2780190, 2805197, 2883384, 3604230, 3706920, 4805640, 5560380, 5610394, 7208460, 8415591, 11120760, 11220788, 14025985, 14416920, 16831182, 19636379, 22441576, 25246773, 28051970, 33662364, 39272758, 42077955, 50493546, 56103940, 58909137, 67324728, 75740319, 78545516, 84155910, 98181895, 100987092, 112207880, 117818274, 126233865, 151480638, 157091032, 168311820, 176727411, 196363790, 201974184, 235636548, 252467730, 294545685, 302961276, 336623640, 353454822, 378701595, 392727580, 471273096, 504935460, 530182233, 589091370, 605922552, 706909644, 757403190, 785455160, 883637055, 1009870920, 1060364466, 1178182740, 1413819288, 1514806380, 1767274110, 2120728932, 2356365480, 2650911165, 3029612760, 3534548220, 4241457864, 5301822330, 7069096440, 10603644660, 21207289320]

約数ペア:

[(1, 21207289320), (2, 10603644660), (3, 7069096440), (4, 5301822330), (5, 4241457864), (6, 3534548220), (7, 3029612760), (8, 2650911165), (9, 2356365480), (10, 2120728932), (12, 1767274110), (14, 1514806380), (15, 1413819288), (18, 1178182740), (20, 1060364466), (21, 1009870920), (24, 883637055), (27, 785455160), (28, 757403190), (30, 706909644), (35, 605922552), (36, 589091370), (40, 530182233), (42, 504935460), (45, 471273096), (54, 392727580), (56, 378701595), (60, 353454822), (63, 336623640), (70, 302961276), (72, 294545685), (84, 252467730), (90, 235636548), (105, 201974184), (108, 196363790), (120, 176727411), (126, 168311820), (135, 157091032), (140, 151480638), (168, 126233865), (180, 117818274), (189, 112207880), (210, 100987092), (216, 98181895), (252, 84155910), (270, 78545516), (280, 75740319), (315, 67324728), (360, 58909137), (378, 56103940), (420, 50493546), (504, 42077955), (540, 39272758), (630, 33662364), (756, 28051970), (840, 25246773), (945, 22441576), (1080, 19636379), (1260, 16831182), (1471, 14416920), (1512, 14025985), (1890, 11220788), (1907, 11120760), (2520, 8415591), (2942, 7208460), (3780, 5610394), (3814, 5560380), (4413, 4805640), (5721, 3706920), (5884, 3604230), (7355, 2883384), (7560, 2805197), (7628, 2780190), (8826, 2402820), (9535, 2224152), (10297, 2059560), (11442, 1853460), (11768, 1802115), (13239, 1601880), (13349, 1588680), (14710, 1441692), (15256, 1390095), (17163, 1235640), (17652, 1201410), (19070, 1112076), (20594, 1029780), (22065, 961128), (22884, 926730), (26478, 800940), (26698, 794340), (28605, 741384), (29420, 720846), (30891, 686520), (34326, 617820), (35304, 600705), (38140, 556038), (39717, 533960), (40047, 529560), (41188, 514890), (44130, 480564), (45768, 463365), (51485, 411912), (51489, 411880), (52956, 400470), (53396, 397170), (57210, 370692), (58840, 360423), (61782, 343260), (66195, 320376), (66745, 317736), (68652, 308910), (76280, 278019), (79434, 266980), (80094, 264780), (82376, 257445), (85815, 247128), (88260, 240282), (92673, 228840), (102970, 205956), (102978, 205940), (105912, 200235), (106792, 198585), (114420, 185346), (120141, 176520), (123564, 171630), (132390, 160188), (133490, 158868), (137304, 154455)]