87412540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{12107}}^1$

素因数の和:12154

約数の個数: 36

約数和(自身を含む): 193752216

約数和(自身を除く): 106339676

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 12107, 24214, 48428, 60535, 121070, 230033, 242140, 460066, 920132, 1150165, 2300330, 4370627, 4600660, 8741254, 17482508, 21853135, 43706270, 87412540]

約数ペア:

[(1, 87412540), (2, 43706270), (4, 21853135), (5, 17482508), (10, 8741254), (19, 4600660), (20, 4370627), (38, 2300330), (76, 1150165), (95, 920132), (190, 460066), (361, 242140), (380, 230033), (722, 121070), (1444, 60535), (1805, 48428), (3610, 24214), (7220, 12107)]