878983980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{401}}^1$

素因数の和:744

約数の個数: 192

約数和(自身を含む): 2995356672

約数和(自身を除く): 2116372692

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 307, 340, 357, 401, 420, 476, 510, 595, 614, 714, 802, 921, 1020, 1190, 1203, 1228, 1428, 1535, 1604, 1785, 1842, 2005, 2149, 2380, 2406, 2807, 3070, 3570, 3684, 4010, 4298, 4605, 4812, 5219, 5614, 6015, 6140, 6447, 6817, 7140, 8020, 8421, 8596, 9210, 10438, 10745, 11228, 12030, 12894, 13634, 14035, 15657, 16842, 18420, 20451, 20876, 21490, 24060, 25788, 26095, 27268, 28070, 31314, 32235, 33684, 34085, 36533, 40902, 42105, 42980, 47719, 52190, 56140, 62628, 64470, 68170, 73066, 78285, 81804, 84210, 95438, 102255, 104380, 109599, 123107, 128940, 136340, 143157, 146132, 156570, 168420, 182665, 190876, 204510, 219198, 238595, 246214, 286314, 313140, 365330, 369321, 409020, 438396, 477190, 492428, 547995, 572628, 615535, 715785, 730660, 738642, 861749, 954380, 1095990, 1231070, 1431570, 1477284, 1723498, 1846605, 2092819, 2191980, 2462140, 2585247, 2863140, 3446996, 3693210, 4185638, 4308745, 5170494, 6278457, 7386420, 8371276, 8617490, 10340988, 10464095, 12556914, 12926235, 14649733, 17234980, 20928190, 25113828, 25852470, 29299466, 31392285, 41856380, 43949199, 51704940, 58598932, 62784570, 73248665, 87898398, 125569140, 146497330, 175796796, 219745995, 292994660, 439491990, 878983980]

約数ペア:

[(1, 878983980), (2, 439491990), (3, 292994660), (4, 219745995), (5, 175796796), (6, 146497330), (7, 125569140), (10, 87898398), (12, 73248665), (14, 62784570), (15, 58598932), (17, 51704940), (20, 43949199), (21, 41856380), (28, 31392285), (30, 29299466), (34, 25852470), (35, 25113828), (42, 20928190), (51, 17234980), (60, 14649733), (68, 12926235), (70, 12556914), (84, 10464095), (85, 10340988), (102, 8617490), (105, 8371276), (119, 7386420), (140, 6278457), (170, 5170494), (204, 4308745), (210, 4185638), (238, 3693210), (255, 3446996), (307, 2863140), (340, 2585247), (357, 2462140), (401, 2191980), (420, 2092819), (476, 1846605), (510, 1723498), (595, 1477284), (614, 1431570), (714, 1231070), (802, 1095990), (921, 954380), (1020, 861749), (1190, 738642), (1203, 730660), (1228, 715785), (1428, 615535), (1535, 572628), (1604, 547995), (1785, 492428), (1842, 477190), (2005, 438396), (2149, 409020), (2380, 369321), (2406, 365330), (2807, 313140), (3070, 286314), (3570, 246214), (3684, 238595), (4010, 219198), (4298, 204510), (4605, 190876), (4812, 182665), (5219, 168420), (5614, 156570), (6015, 146132), (6140, 143157), (6447, 136340), (6817, 128940), (7140, 123107), (8020, 109599), (8421, 104380), (8596, 102255), (9210, 95438), (10438, 84210), (10745, 81804), (11228, 78285), (12030, 73066), (12894, 68170), (13634, 64470), (14035, 62628), (15657, 56140), (16842, 52190), (18420, 47719), (20451, 42980), (20876, 42105), (21490, 40902), (24060, 36533), (25788, 34085), (26095, 33684), (27268, 32235), (28070, 31314)]