31915845

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{613}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 60343920

約数和(自身を除く): 28428075

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 89, 117, 195, 267, 445, 585, 613, 801, 1157, 1335, 1839, 3065, 3471, 4005, 5517, 5785, 7969, 9195, 10413, 17355, 23907, 27585, 39845, 52065, 54557, 71721, 119535, 163671, 272785, 358605, 491013, 709241, 818355, 2127723, 2455065, 3546205, 6383169, 10638615, 31915845]

約数ペア:

[(1, 31915845), (3, 10638615), (5, 6383169), (9, 3546205), (13, 2455065), (15, 2127723), (39, 818355), (45, 709241), (65, 491013), (89, 358605), (117, 272785), (195, 163671), (267, 119535), (445, 71721), (585, 54557), (613, 52065), (801, 39845), (1157, 27585), (1335, 23907), (1839, 17355), (3065, 10413), (3471, 9195), (4005, 7969), (5517, 5785)]