71658640

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 175399488

約数和(自身を除く): 103740848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 43, 74, 80, 86, 148, 172, 185, 215, 296, 344, 370, 430, 563, 592, 688, 740, 860, 1126, 1480, 1591, 1720, 2252, 2815, 2960, 3182, 3440, 4504, 5630, 6364, 7955, 9008, 11260, 12728, 15910, 20831, 22520, 24209, 25456, 31820, 41662, 45040, 48418, 63640, 83324, 96836, 104155, 121045, 127280, 166648, 193672, 208310, 242090, 333296, 387344, 416620, 484180, 833240, 895733, 968360, 1666480, 1791466, 1936720, 3582932, 4478665, 7165864, 8957330, 14331728, 17914660, 35829320, 71658640]

約数ペア:

[(1, 71658640), (2, 35829320), (4, 17914660), (5, 14331728), (8, 8957330), (10, 7165864), (16, 4478665), (20, 3582932), (37, 1936720), (40, 1791466), (43, 1666480), (74, 968360), (80, 895733), (86, 833240), (148, 484180), (172, 416620), (185, 387344), (215, 333296), (296, 242090), (344, 208310), (370, 193672), (430, 166648), (563, 127280), (592, 121045), (688, 104155), (740, 96836), (860, 83324), (1126, 63640), (1480, 48418), (1591, 45040), (1720, 41662), (2252, 31820), (2815, 25456), (2960, 24209), (3182, 22520), (3440, 20831), (4504, 15910), (5630, 12728), (6364, 11260), (7955, 9008)]