278931240

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{383}}^1$

素因数の和:441

約数の個数: 288

約数和(自身を含む): 1103431680

約数和(自身を除く): 824500440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 17, 18, 20, 21, 24, 28, 30, 34, 35, 36, 40, 42, 45, 51, 56, 60, 63, 68, 70, 72, 84, 85, 90, 102, 105, 119, 120, 126, 136, 140, 153, 168, 170, 180, 204, 210, 238, 252, 255, 280, 289, 306, 315, 340, 357, 360, 383, 408, 420, 476, 504, 510, 578, 595, 612, 630, 680, 714, 765, 766, 840, 867, 952, 1020, 1071, 1149, 1156, 1190, 1224, 1260, 1428, 1445, 1530, 1532, 1734, 1785, 1915, 2023, 2040, 2142, 2298, 2312, 2380, 2520, 2601, 2681, 2856, 2890, 3060, 3064, 3447, 3468, 3570, 3830, 4046, 4284, 4335, 4596, 4760, 5202, 5355, 5362, 5745, 5780, 6069, 6120, 6511, 6894, 6936, 7140, 7660, 8043, 8092, 8568, 8670, 9192, 10115, 10404, 10710, 10724, 11490, 11560, 12138, 13005, 13022, 13405, 13788, 14280, 15320, 16086, 16184, 17235, 17340, 18207, 19533, 20230, 20808, 21420, 21448, 22980, 24129, 24276, 26010, 26044, 26810, 27576, 30345, 32172, 32555, 34470, 34680, 36414, 39066, 40215, 40460, 42840, 45577, 45960, 48258, 48552, 52020, 52088, 53620, 58599, 60690, 64344, 65110, 68940, 72828, 78132, 80430, 80920, 91035, 91154, 96516, 97665, 104040, 107240, 110687, 117198, 120645, 121380, 130220, 136731, 137880, 145656, 156264, 160860, 182070, 182308, 193032, 195330, 221374, 227885, 234396, 241290, 242760, 260440, 273462, 292995, 321720, 332061, 364140, 364616, 390660, 410193, 442748, 455770, 468792, 482580, 546924, 553435, 585990, 664122, 683655, 728280, 774809, 781320, 820386, 885496, 911540, 965160, 996183, 1093848, 1106870, 1171980, 1328244, 1367310, 1549618, 1640772, 1660305, 1823080, 1992366, 2050965, 2213740, 2324427, 2343960, 2656488, 2734620, 3099236, 3281544, 3320610, 3874045, 3984732, 4101930, 4427480, 4648854, 4980915, 5469240, 6198472, 6641220, 6973281, 7748090, 7969464, 8203860, 9297708, 9961830, 11622135, 13282440, 13946562, 15496180, 16407720, 18595416, 19923660, 23244270, 27893124, 30992360, 34866405, 39847320, 46488540, 55786248, 69732810, 92977080, 139465620, 278931240]

約数ペア:

[(1, 278931240), (2, 139465620), (3, 92977080), (4, 69732810), (5, 55786248), (6, 46488540), (7, 39847320), (8, 34866405), (9, 30992360), (10, 27893124), (12, 23244270), (14, 19923660), (15, 18595416), (17, 16407720), (18, 15496180), (20, 13946562), (21, 13282440), (24, 11622135), (28, 9961830), (30, 9297708), (34, 8203860), (35, 7969464), (36, 7748090), (40, 6973281), (42, 6641220), (45, 6198472), (51, 5469240), (56, 4980915), (60, 4648854), (63, 4427480), (68, 4101930), (70, 3984732), (72, 3874045), (84, 3320610), (85, 3281544), (90, 3099236), (102, 2734620), (105, 2656488), (119, 2343960), (120, 2324427), (126, 2213740), (136, 2050965), (140, 1992366), (153, 1823080), (168, 1660305), (170, 1640772), (180, 1549618), (204, 1367310), (210, 1328244), (238, 1171980), (252, 1106870), (255, 1093848), (280, 996183), (289, 965160), (306, 911540), (315, 885496), (340, 820386), (357, 781320), (360, 774809), (383, 728280), (408, 683655), (420, 664122), (476, 585990), (504, 553435), (510, 546924), (578, 482580), (595, 468792), (612, 455770), (630, 442748), (680, 410193), (714, 390660), (765, 364616), (766, 364140), (840, 332061), (867, 321720), (952, 292995), (1020, 273462), (1071, 260440), (1149, 242760), (1156, 241290), (1190, 234396), (1224, 227885), (1260, 221374), (1428, 195330), (1445, 193032), (1530, 182308), (1532, 182070), (1734, 160860), (1785, 156264), (1915, 145656), (2023, 137880), (2040, 136731), (2142, 130220), (2298, 121380), (2312, 120645), (2380, 117198), (2520, 110687), (2601, 107240), (2681, 104040), (2856, 97665), (2890, 96516), (3060, 91154), (3064, 91035), (3447, 80920), (3468, 80430), (3570, 78132), (3830, 72828), (4046, 68940), (4284, 65110), (4335, 64344), (4596, 60690), (4760, 58599), (5202, 53620), (5355, 52088), (5362, 52020), (5745, 48552), (5780, 48258), (6069, 45960), (6120, 45577), (6511, 42840), (6894, 40460), (6936, 40215), (7140, 39066), (7660, 36414), (8043, 34680), (8092, 34470), (8568, 32555), (8670, 32172), (9192, 30345), (10115, 27576), (10404, 26810), (10710, 26044), (10724, 26010), (11490, 24276), (11560, 24129), (12138, 22980), (13005, 21448), (13022, 21420), (13405, 20808), (13788, 20230), (14280, 19533), (15320, 18207), (16086, 17340), (16184, 17235)]