19914444680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38297009}}^1$

素因数の和:38297033

約数の個数: 32

約数和(自身を含む): 48254232600

約数和(自身を除く): 28339787920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38297009, 76594018, 153188036, 191485045, 306376072, 382970090, 497861117, 765940180, 995722234, 1531880360, 1991444468, 2489305585, 3982888936, 4978611170, 9957222340, 19914444680]

約数ペア:

[(1, 19914444680), (2, 9957222340), (4, 4978611170), (5, 3982888936), (8, 2489305585), (10, 1991444468), (13, 1531880360), (20, 995722234), (26, 765940180), (40, 497861117), (52, 382970090), (65, 306376072), (104, 191485045), (130, 153188036), (260, 76594018), (520, 38297009)]