188577980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1\times {\mathrm{569}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 403915680

約数和(自身を除く): 215337700

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 227, 292, 365, 454, 569, 730, 908, 1135, 1138, 1460, 2270, 2276, 2845, 4540, 5690, 11380, 16571, 33142, 41537, 66284, 82855, 83074, 129163, 165710, 166148, 207685, 258326, 331420, 415370, 516652, 645815, 830740, 1291630, 2583260, 9428899, 18857798, 37715596, 47144495, 94288990, 188577980]

約数ペア:

[(1, 188577980), (2, 94288990), (4, 47144495), (5, 37715596), (10, 18857798), (20, 9428899), (73, 2583260), (146, 1291630), (227, 830740), (292, 645815), (365, 516652), (454, 415370), (569, 331420), (730, 258326), (908, 207685), (1135, 166148), (1138, 165710), (1460, 129163), (2270, 83074), (2276, 82855), (2845, 66284), (4540, 41537), (5690, 33142), (11380, 16571)]