87195920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{155707}}^1$

素因数の和:155727

約数の個数: 40

約数和(自身を含む): 231693504

約数和(自身を除く): 144497584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 155707, 311414, 622828, 778535, 1089949, 1245656, 1557070, 2179898, 2491312, 3114140, 4359796, 5449745, 6228280, 8719592, 10899490, 12456560, 17439184, 21798980, 43597960, 87195920]

約数ペア:

[(1, 87195920), (2, 43597960), (4, 21798980), (5, 17439184), (7, 12456560), (8, 10899490), (10, 8719592), (14, 6228280), (16, 5449745), (20, 4359796), (28, 3114140), (35, 2491312), (40, 2179898), (56, 1557070), (70, 1245656), (80, 1089949), (112, 778535), (140, 622828), (280, 311414), (560, 155707)]