19742560

素因数分解:

$2^5\times 5^1\times {\mathrm{163}}^1\times {\mathrm{757}}^1$

素因数の和:935

約数の個数: 48

約数和(自身を含む): 46989936

約数和(自身を除く): 27247376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 163, 326, 652, 757, 815, 1304, 1514, 1630, 2608, 3028, 3260, 3785, 5216, 6056, 6520, 7570, 12112, 13040, 15140, 24224, 26080, 30280, 60560, 121120, 123391, 246782, 493564, 616955, 987128, 1233910, 1974256, 2467820, 3948512, 4935640, 9871280, 19742560]

約数ペア:

[(1, 19742560), (2, 9871280), (4, 4935640), (5, 3948512), (8, 2467820), (10, 1974256), (16, 1233910), (20, 987128), (32, 616955), (40, 493564), (80, 246782), (160, 123391), (163, 121120), (326, 60560), (652, 30280), (757, 26080), (815, 24224), (1304, 15140), (1514, 13040), (1630, 12112), (2608, 7570), (3028, 6520), (3260, 6056), (3785, 5216)]