31311740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1583}}^1$

素因数の和:1658

約数の個数: 48

約数和(自身を含む): 70253568

約数和(自身を除く): 38941828

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 215, 230, 430, 460, 860, 989, 1583, 1978, 3166, 3956, 4945, 6332, 7915, 9890, 15830, 19780, 31660, 36409, 68069, 72818, 136138, 145636, 182045, 272276, 340345, 364090, 680690, 728180, 1361380, 1565587, 3131174, 6262348, 7827935, 15655870, 31311740]

約数ペア:

[(1, 31311740), (2, 15655870), (4, 7827935), (5, 6262348), (10, 3131174), (20, 1565587), (23, 1361380), (43, 728180), (46, 680690), (86, 364090), (92, 340345), (115, 272276), (172, 182045), (215, 145636), (230, 136138), (430, 72818), (460, 68069), (860, 36409), (989, 31660), (1583, 19780), (1978, 15830), (3166, 9890), (3956, 7915), (4945, 6332)]