31402640

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{103}}^2$

素因数の和:256

約数の個数: 60

約数和(自身を含む): 75719484

約数和(自身を除く): 44316844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 103, 148, 185, 206, 296, 370, 412, 515, 592, 740, 824, 1030, 1480, 1648, 2060, 2960, 3811, 4120, 7622, 8240, 10609, 15244, 19055, 21218, 30488, 38110, 42436, 53045, 60976, 76220, 84872, 106090, 152440, 169744, 212180, 304880, 392533, 424360, 785066, 848720, 1570132, 1962665, 3140264, 3925330, 6280528, 7850660, 15701320, 31402640]

約数ペア:

[(1, 31402640), (2, 15701320), (4, 7850660), (5, 6280528), (8, 3925330), (10, 3140264), (16, 1962665), (20, 1570132), (37, 848720), (40, 785066), (74, 424360), (80, 392533), (103, 304880), (148, 212180), (185, 169744), (206, 152440), (296, 106090), (370, 84872), (412, 76220), (515, 60976), (592, 53045), (740, 42436), (824, 38110), (1030, 30488), (1480, 21218), (1648, 19055), (2060, 15244), (2960, 10609), (3811, 8240), (4120, 7622)]