71463680

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1801}}^1$

素因数の和:1853

約数の個数: 72

約数和(自身を含む): 176797824

約数和(自身を除く): 105334144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1801, 1984, 2480, 3602, 3968, 4960, 7204, 7936, 9005, 9920, 14408, 18010, 19840, 28816, 36020, 39680, 55831, 57632, 72040, 111662, 115264, 144080, 223324, 230528, 279155, 288160, 446648, 461056, 558310, 576320, 893296, 1116620, 1152640, 1786592, 2233240, 2305280, 3573184, 4466480, 7146368, 8932960, 14292736, 17865920, 35731840, 71463680]

約数ペア:

[(1, 71463680), (2, 35731840), (4, 17865920), (5, 14292736), (8, 8932960), (10, 7146368), (16, 4466480), (20, 3573184), (31, 2305280), (32, 2233240), (40, 1786592), (62, 1152640), (64, 1116620), (80, 893296), (124, 576320), (128, 558310), (155, 461056), (160, 446648), (248, 288160), (256, 279155), (310, 230528), (320, 223324), (496, 144080), (620, 115264), (640, 111662), (992, 72040), (1240, 57632), (1280, 55831), (1801, 39680), (1984, 36020), (2480, 28816), (3602, 19840), (3968, 18010), (4960, 14408), (7204, 9920), (7936, 9005)]