71386240

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1571}}^1$

素因数の和:1661

約数の個数: 64

約数和(自身を含む): 173171520

約数和(自身を除く): 101785280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 640, 710, 1136, 1420, 1571, 2272, 2840, 3142, 4544, 5680, 6284, 7855, 9088, 11360, 12568, 15710, 22720, 25136, 31420, 45440, 50272, 62840, 100544, 111541, 125680, 201088, 223082, 251360, 446164, 502720, 557705, 892328, 1005440, 1115410, 1784656, 2230820, 3569312, 4461640, 7138624, 8923280, 14277248, 17846560, 35693120, 71386240]

約数ペア:

[(1, 71386240), (2, 35693120), (4, 17846560), (5, 14277248), (8, 8923280), (10, 7138624), (16, 4461640), (20, 3569312), (32, 2230820), (40, 1784656), (64, 1115410), (71, 1005440), (80, 892328), (128, 557705), (142, 502720), (160, 446164), (284, 251360), (320, 223082), (355, 201088), (568, 125680), (640, 111541), (710, 100544), (1136, 62840), (1420, 50272), (1571, 45440), (2272, 31420), (2840, 25136), (3142, 22720), (4544, 15710), (5680, 12568), (6284, 11360), (7855, 9088)]