1408640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 64

約数和(自身を含む): 3525120

約数和(自身を除く): 2116480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 71, 80, 124, 128, 142, 155, 160, 248, 284, 310, 320, 355, 496, 568, 620, 640, 710, 992, 1136, 1240, 1420, 1984, 2201, 2272, 2480, 2840, 3968, 4402, 4544, 4960, 5680, 8804, 9088, 9920, 11005, 11360, 17608, 19840, 22010, 22720, 35216, 44020, 45440, 70432, 88040, 140864, 176080, 281728, 352160, 704320, 1408640]

約数ペア:

[(1, 1408640), (2, 704320), (4, 352160), (5, 281728), (8, 176080), (10, 140864), (16, 88040), (20, 70432), (31, 45440), (32, 44020), (40, 35216), (62, 22720), (64, 22010), (71, 19840), (80, 17608), (124, 11360), (128, 11005), (142, 9920), (155, 9088), (160, 8804), (248, 5680), (284, 4960), (310, 4544), (320, 4402), (355, 3968), (496, 2840), (568, 2480), (620, 2272), (640, 2201), (710, 1984), (992, 1420), (1136, 1240)]