20746800

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:157

約数の個数: 240

約数和(自身を含む): 78878880

約数和(自身を除く): 58132080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 25, 27, 30, 34, 36, 40, 45, 48, 50, 51, 54, 60, 68, 72, 75, 80, 85, 90, 100, 102, 108, 113, 120, 135, 136, 144, 150, 153, 170, 180, 200, 204, 216, 225, 226, 240, 255, 270, 272, 300, 306, 339, 340, 360, 400, 408, 425, 432, 450, 452, 459, 510, 540, 565, 600, 612, 675, 678, 680, 720, 765, 816, 850, 900, 904, 918, 1017, 1020, 1080, 1130, 1200, 1224, 1275, 1350, 1356, 1360, 1530, 1695, 1700, 1800, 1808, 1836, 1921, 2034, 2040, 2160, 2260, 2295, 2448, 2550, 2700, 2712, 2825, 3051, 3060, 3390, 3400, 3600, 3672, 3825, 3842, 4068, 4080, 4520, 4590, 5085, 5100, 5400, 5424, 5650, 5763, 6102, 6120, 6780, 6800, 7344, 7650, 7684, 8136, 8475, 9040, 9180, 9605, 10170, 10200, 10800, 11300, 11475, 11526, 12204, 12240, 13560, 15255, 15300, 15368, 16272, 16950, 17289, 18360, 19210, 20340, 20400, 22600, 22950, 23052, 24408, 25425, 27120, 28815, 30510, 30600, 30736, 33900, 34578, 36720, 38420, 40680, 45200, 45900, 46104, 48025, 48816, 50850, 51867, 57630, 61020, 61200, 67800, 69156, 76275, 76840, 81360, 86445, 91800, 92208, 96050, 101700, 103734, 115260, 122040, 135600, 138312, 144075, 152550, 153680, 172890, 183600, 192100, 203400, 207468, 230520, 244080, 259335, 276624, 288150, 305100, 345780, 384200, 406800, 414936, 432225, 461040, 518670, 576300, 610200, 691560, 768400, 829872, 864450, 1037340, 1152600, 1220400, 1296675, 1383120, 1728900, 2074680, 2305200, 2593350, 3457800, 4149360, 5186700, 6915600, 10373400, 20746800]

約数ペア:

[(1, 20746800), (2, 10373400), (3, 6915600), (4, 5186700), (5, 4149360), (6, 3457800), (8, 2593350), (9, 2305200), (10, 2074680), (12, 1728900), (15, 1383120), (16, 1296675), (17, 1220400), (18, 1152600), (20, 1037340), (24, 864450), (25, 829872), (27, 768400), (30, 691560), (34, 610200), (36, 576300), (40, 518670), (45, 461040), (48, 432225), (50, 414936), (51, 406800), (54, 384200), (60, 345780), (68, 305100), (72, 288150), (75, 276624), (80, 259335), (85, 244080), (90, 230520), (100, 207468), (102, 203400), (108, 192100), (113, 183600), (120, 172890), (135, 153680), (136, 152550), (144, 144075), (150, 138312), (153, 135600), (170, 122040), (180, 115260), (200, 103734), (204, 101700), (216, 96050), (225, 92208), (226, 91800), (240, 86445), (255, 81360), (270, 76840), (272, 76275), (300, 69156), (306, 67800), (339, 61200), (340, 61020), (360, 57630), (400, 51867), (408, 50850), (425, 48816), (432, 48025), (450, 46104), (452, 45900), (459, 45200), (510, 40680), (540, 38420), (565, 36720), (600, 34578), (612, 33900), (675, 30736), (678, 30600), (680, 30510), (720, 28815), (765, 27120), (816, 25425), (850, 24408), (900, 23052), (904, 22950), (918, 22600), (1017, 20400), (1020, 20340), (1080, 19210), (1130, 18360), (1200, 17289), (1224, 16950), (1275, 16272), (1350, 15368), (1356, 15300), (1360, 15255), (1530, 13560), (1695, 12240), (1700, 12204), (1800, 11526), (1808, 11475), (1836, 11300), (1921, 10800), (2034, 10200), (2040, 10170), (2160, 9605), (2260, 9180), (2295, 9040), (2448, 8475), (2550, 8136), (2700, 7684), (2712, 7650), (2825, 7344), (3051, 6800), (3060, 6780), (3390, 6120), (3400, 6102), (3600, 5763), (3672, 5650), (3825, 5424), (3842, 5400), (4068, 5100), (4080, 5085), (4520, 4590)]