1738640

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:327

約数の個数: 40

約数和(自身を含む): 4100928

約数和(自身を除く): 2362288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 211, 412, 422, 515, 824, 844, 1030, 1055, 1648, 1688, 2060, 2110, 3376, 4120, 4220, 8240, 8440, 16880, 21733, 43466, 86932, 108665, 173864, 217330, 347728, 434660, 869320, 1738640]

約数ペア:

[(1, 1738640), (2, 869320), (4, 434660), (5, 347728), (8, 217330), (10, 173864), (16, 108665), (20, 86932), (40, 43466), (80, 21733), (103, 16880), (206, 8440), (211, 8240), (412, 4220), (422, 4120), (515, 3376), (824, 2110), (844, 2060), (1030, 1688), (1055, 1648)]