87814640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:354

約数の個数: 80

約数和(自身を含む): 210924000

約数和(自身を除く): 123109360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 139, 149, 212, 265, 278, 298, 424, 530, 556, 596, 695, 745, 848, 1060, 1112, 1192, 1390, 1490, 2120, 2224, 2384, 2780, 2980, 4240, 5560, 5960, 7367, 7897, 11120, 11920, 14734, 15794, 20711, 29468, 31588, 36835, 39485, 41422, 58936, 63176, 73670, 78970, 82844, 103555, 117872, 126352, 147340, 157940, 165688, 207110, 294680, 315880, 331376, 414220, 589360, 631760, 828440, 1097683, 1656880, 2195366, 4390732, 5488415, 8781464, 10976830, 17562928, 21953660, 43907320, 87814640]

約数ペア:

[(1, 87814640), (2, 43907320), (4, 21953660), (5, 17562928), (8, 10976830), (10, 8781464), (16, 5488415), (20, 4390732), (40, 2195366), (53, 1656880), (80, 1097683), (106, 828440), (139, 631760), (149, 589360), (212, 414220), (265, 331376), (278, 315880), (298, 294680), (424, 207110), (530, 165688), (556, 157940), (596, 147340), (695, 126352), (745, 117872), (848, 103555), (1060, 82844), (1112, 78970), (1192, 73670), (1390, 63176), (1490, 58936), (2120, 41422), (2224, 39485), (2384, 36835), (2780, 31588), (2980, 29468), (4240, 20711), (5560, 15794), (5960, 14734), (7367, 11920), (7897, 11120)]