81554980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1733}}^1$

素因数の和:1936

約数の個数: 48

約数和(自身を含む): 185565744

約数和(自身を除く): 104010764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 724, 905, 1733, 1810, 2353, 3466, 3620, 4706, 6932, 8665, 9412, 11765, 17330, 22529, 23530, 34660, 45058, 47060, 90116, 112645, 225290, 313673, 450580, 627346, 1254692, 1568365, 3136730, 4077749, 6273460, 8155498, 16310996, 20388745, 40777490, 81554980]

約数ペア:

[(1, 81554980), (2, 40777490), (4, 20388745), (5, 16310996), (10, 8155498), (13, 6273460), (20, 4077749), (26, 3136730), (52, 1568365), (65, 1254692), (130, 627346), (181, 450580), (260, 313673), (362, 225290), (724, 112645), (905, 90116), (1733, 47060), (1810, 45058), (2353, 34660), (3466, 23530), (3620, 22529), (4706, 17330), (6932, 11765), (8665, 9412)]