636705280

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:238

約数の個数: 160

約数和(自身を含む): 1612182528

約数和(自身を除く): 975477248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 71, 80, 113, 124, 128, 142, 155, 160, 226, 248, 256, 284, 310, 320, 355, 452, 496, 512, 565, 568, 620, 640, 710, 904, 992, 1130, 1136, 1240, 1280, 1420, 1808, 1984, 2201, 2260, 2272, 2480, 2560, 2840, 3503, 3616, 3968, 4402, 4520, 4544, 4960, 5680, 7006, 7232, 7936, 8023, 8804, 9040, 9088, 9920, 11005, 11360, 14012, 14464, 15872, 16046, 17515, 17608, 18080, 18176, 19840, 22010, 22720, 28024, 28928, 32092, 35030, 35216, 36160, 36352, 39680, 40115, 44020, 45440, 56048, 57856, 64184, 70060, 70432, 72320, 79360, 80230, 88040, 90880, 112096, 128368, 140120, 140864, 144640, 160460, 176080, 181760, 224192, 248713, 256736, 280240, 281728, 289280, 320920, 352160, 448384, 497426, 513472, 560480, 563456, 641840, 704320, 896768, 994852, 1026944, 1120960, 1126912, 1243565, 1283680, 1408640, 1793536, 1989704, 2053888, 2241920, 2487130, 2567360, 2817280, 3979408, 4107776, 4483840, 4974260, 5134720, 5634560, 7958816, 8967680, 9948520, 10269440, 15917632, 19897040, 20538880, 31835264, 39794080, 63670528, 79588160, 127341056, 159176320, 318352640, 636705280]

約数ペア:

[(1, 636705280), (2, 318352640), (4, 159176320), (5, 127341056), (8, 79588160), (10, 63670528), (16, 39794080), (20, 31835264), (31, 20538880), (32, 19897040), (40, 15917632), (62, 10269440), (64, 9948520), (71, 8967680), (80, 7958816), (113, 5634560), (124, 5134720), (128, 4974260), (142, 4483840), (155, 4107776), (160, 3979408), (226, 2817280), (248, 2567360), (256, 2487130), (284, 2241920), (310, 2053888), (320, 1989704), (355, 1793536), (452, 1408640), (496, 1283680), (512, 1243565), (565, 1126912), (568, 1120960), (620, 1026944), (640, 994852), (710, 896768), (904, 704320), (992, 641840), (1130, 563456), (1136, 560480), (1240, 513472), (1280, 497426), (1420, 448384), (1808, 352160), (1984, 320920), (2201, 289280), (2260, 281728), (2272, 280240), (2480, 256736), (2560, 248713), (2840, 224192), (3503, 181760), (3616, 176080), (3968, 160460), (4402, 144640), (4520, 140864), (4544, 140120), (4960, 128368), (5680, 112096), (7006, 90880), (7232, 88040), (7936, 80230), (8023, 79360), (8804, 72320), (9040, 70432), (9088, 70060), (9920, 64184), (11005, 57856), (11360, 56048), (14012, 45440), (14464, 44020), (15872, 40115), (16046, 39680), (17515, 36352), (17608, 36160), (18080, 35216), (18176, 35030), (19840, 32092), (22010, 28928), (22720, 28024)]