81800316

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{631}}^1$

素因数の和:931

約数の個数: 72

約数和(自身を含む): 223836704

約数和(自身を除く): 142036388

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 277, 468, 554, 631, 831, 1108, 1262, 1662, 1893, 2493, 2524, 3324, 3601, 3786, 4986, 5679, 7202, 7572, 8203, 9972, 10803, 11358, 14404, 16406, 21606, 22716, 24609, 32409, 32812, 43212, 49218, 64818, 73827, 98436, 129636, 147654, 174787, 295308, 349574, 524361, 699148, 1048722, 1573083, 2097444, 2272231, 3146166, 4544462, 6292332, 6816693, 9088924, 13633386, 20450079, 27266772, 40900158, 81800316]

約数ペア:

[(1, 81800316), (2, 40900158), (3, 27266772), (4, 20450079), (6, 13633386), (9, 9088924), (12, 6816693), (13, 6292332), (18, 4544462), (26, 3146166), (36, 2272231), (39, 2097444), (52, 1573083), (78, 1048722), (117, 699148), (156, 524361), (234, 349574), (277, 295308), (468, 174787), (554, 147654), (631, 129636), (831, 98436), (1108, 73827), (1262, 64818), (1662, 49218), (1893, 43212), (2493, 32812), (2524, 32409), (3324, 24609), (3601, 22716), (3786, 21606), (4986, 16406), (5679, 14404), (7202, 11358), (7572, 10803), (8203, 9972)]