678964480

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:364

約数の個数: 144

約数和(自身を含む): 1709503488

約数和(自身を除く): 1030539008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 71, 80, 124, 128, 142, 155, 160, 241, 248, 256, 284, 310, 320, 355, 482, 496, 568, 620, 640, 710, 964, 992, 1136, 1205, 1240, 1280, 1420, 1928, 1984, 2201, 2272, 2410, 2480, 2840, 3856, 3968, 4402, 4544, 4820, 4960, 5680, 7471, 7712, 7936, 8804, 9088, 9640, 9920, 11005, 11360, 14942, 15424, 17111, 17608, 18176, 19280, 19840, 22010, 22720, 29884, 30848, 34222, 35216, 37355, 38560, 39680, 44020, 45440, 59768, 61696, 68444, 70432, 74710, 77120, 85555, 88040, 90880, 119536, 136888, 140864, 149420, 154240, 171110, 176080, 239072, 273776, 281728, 298840, 308480, 342220, 352160, 478144, 530441, 547552, 563456, 597680, 684440, 704320, 956288, 1060882, 1095104, 1195360, 1368880, 1408640, 1912576, 2121764, 2190208, 2390720, 2652205, 2737760, 2817280, 4243528, 4380416, 4781440, 5304410, 5475520, 8487056, 9562880, 10608820, 10951040, 16974112, 21217640, 21902080, 33948224, 42435280, 67896448, 84870560, 135792896, 169741120, 339482240, 678964480]

約数ペア:

[(1, 678964480), (2, 339482240), (4, 169741120), (5, 135792896), (8, 84870560), (10, 67896448), (16, 42435280), (20, 33948224), (31, 21902080), (32, 21217640), (40, 16974112), (62, 10951040), (64, 10608820), (71, 9562880), (80, 8487056), (124, 5475520), (128, 5304410), (142, 4781440), (155, 4380416), (160, 4243528), (241, 2817280), (248, 2737760), (256, 2652205), (284, 2390720), (310, 2190208), (320, 2121764), (355, 1912576), (482, 1408640), (496, 1368880), (568, 1195360), (620, 1095104), (640, 1060882), (710, 956288), (964, 704320), (992, 684440), (1136, 597680), (1205, 563456), (1240, 547552), (1280, 530441), (1420, 478144), (1928, 352160), (1984, 342220), (2201, 308480), (2272, 298840), (2410, 281728), (2480, 273776), (2840, 239072), (3856, 176080), (3968, 171110), (4402, 154240), (4544, 149420), (4820, 140864), (4960, 136888), (5680, 119536), (7471, 90880), (7712, 88040), (7936, 85555), (8804, 77120), (9088, 74710), (9640, 70432), (9920, 68444), (11005, 61696), (11360, 59768), (14942, 45440), (15424, 44020), (17111, 39680), (17608, 38560), (18176, 37355), (19280, 35216), (19840, 34222), (22010, 30848), (22720, 29884)]