90971920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87473}}^1$

素因数の和:87499

約数の個数: 40

約数和(自身を含む): 227782296

約数和(自身を除く): 136810376

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 87473, 174946, 349892, 437365, 699784, 874730, 1137149, 1399568, 1749460, 2274298, 3498920, 4548596, 5685745, 6997840, 9097192, 11371490, 18194384, 22742980, 45485960, 90971920]

約数ペア:

[(1, 90971920), (2, 45485960), (4, 22742980), (5, 18194384), (8, 11371490), (10, 9097192), (13, 6997840), (16, 5685745), (20, 4548596), (26, 3498920), (40, 2274298), (52, 1749460), (65, 1399568), (80, 1137149), (104, 874730), (130, 699784), (208, 437365), (260, 349892), (520, 174946), (1040, 87473)]