12922640

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{991}}^1$

素因数の和:1167

約数の個数: 40

約数和(自身を含む): 30259968

約数和(自身を除く): 17337328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 991, 1304, 1630, 1982, 2608, 3260, 3964, 4955, 6520, 7928, 9910, 13040, 15856, 19820, 39640, 79280, 161533, 323066, 646132, 807665, 1292264, 1615330, 2584528, 3230660, 6461320, 12922640]

約数ペア:

[(1, 12922640), (2, 6461320), (4, 3230660), (5, 2584528), (8, 1615330), (10, 1292264), (16, 807665), (20, 646132), (40, 323066), (80, 161533), (163, 79280), (326, 39640), (652, 19820), (815, 15856), (991, 13040), (1304, 9910), (1630, 7928), (1982, 6520), (2608, 4955), (3260, 3964)]