66650920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{238039}}^1$

素因数の和:238057

約数の個数: 32

約数和(自身を含む): 171388800

約数和(自身を除く): 104737880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 238039, 476078, 952156, 1190195, 1666273, 1904312, 2380390, 3332546, 4760780, 6665092, 8331365, 9521560, 13330184, 16662730, 33325460, 66650920]

約数ペア:

[(1, 66650920), (2, 33325460), (4, 16662730), (5, 13330184), (7, 9521560), (8, 8331365), (10, 6665092), (14, 4760780), (20, 3332546), (28, 2380390), (35, 1904312), (40, 1666273), (56, 1190195), (70, 952156), (140, 476078), (280, 238039)]