31981716

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{2531}}^1$

素因数の和:2563

約数の個数: 72

約数和(自身を含む): 90321504

約数和(自身を除く): 58339788

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 2106, 2531, 3159, 4212, 5062, 6318, 7593, 10124, 12636, 15186, 22779, 30372, 32903, 45558, 65806, 68337, 91116, 98709, 131612, 136674, 197418, 205011, 273348, 296127, 394836, 410022, 592254, 615033, 820044, 888381, 1184508, 1230066, 1776762, 2460132, 2665143, 3553524, 5330286, 7995429, 10660572, 15990858, 31981716]

約数ペア:

[(1, 31981716), (2, 15990858), (3, 10660572), (4, 7995429), (6, 5330286), (9, 3553524), (12, 2665143), (13, 2460132), (18, 1776762), (26, 1230066), (27, 1184508), (36, 888381), (39, 820044), (52, 615033), (54, 592254), (78, 410022), (81, 394836), (108, 296127), (117, 273348), (156, 205011), (162, 197418), (234, 136674), (243, 131612), (324, 98709), (351, 91116), (468, 68337), (486, 65806), (702, 45558), (972, 32903), (1053, 30372), (1404, 22779), (2106, 15186), (2531, 12636), (3159, 10124), (4212, 7593), (5062, 6318)]