887136920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{5147}}^1$

素因数の和:5328

約数の個数: 64

約数和(自身を含む): 2075673600

約数和(自身を除く): 1188536680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 139, 155, 248, 278, 310, 556, 620, 695, 1112, 1240, 1390, 2780, 4309, 5147, 5560, 8618, 10294, 17236, 20588, 21545, 25735, 34472, 41176, 43090, 51470, 86180, 102940, 159557, 172360, 205880, 319114, 638228, 715433, 797785, 1276456, 1430866, 1595570, 2861732, 3191140, 3577165, 5723464, 6382280, 7154330, 14308660, 22178423, 28617320, 44356846, 88713692, 110892115, 177427384, 221784230, 443568460, 887136920]

約数ペア:

[(1, 887136920), (2, 443568460), (4, 221784230), (5, 177427384), (8, 110892115), (10, 88713692), (20, 44356846), (31, 28617320), (40, 22178423), (62, 14308660), (124, 7154330), (139, 6382280), (155, 5723464), (248, 3577165), (278, 3191140), (310, 2861732), (556, 1595570), (620, 1430866), (695, 1276456), (1112, 797785), (1240, 715433), (1390, 638228), (2780, 319114), (4309, 205880), (5147, 172360), (5560, 159557), (8618, 102940), (10294, 86180), (17236, 51470), (20588, 43090), (21545, 41176), (25735, 34472)]