51505880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{569}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 121478400

約数和(自身を除く): 69972520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 73, 124, 146, 155, 248, 292, 310, 365, 569, 584, 620, 730, 1138, 1240, 1460, 2263, 2276, 2845, 2920, 4526, 4552, 5690, 9052, 11315, 11380, 17639, 18104, 22630, 22760, 35278, 41537, 45260, 70556, 83074, 88195, 90520, 141112, 166148, 176390, 207685, 332296, 352780, 415370, 705560, 830740, 1287647, 1661480, 2575294, 5150588, 6438235, 10301176, 12876470, 25752940, 51505880]

約数ペア:

[(1, 51505880), (2, 25752940), (4, 12876470), (5, 10301176), (8, 6438235), (10, 5150588), (20, 2575294), (31, 1661480), (40, 1287647), (62, 830740), (73, 705560), (124, 415370), (146, 352780), (155, 332296), (248, 207685), (292, 176390), (310, 166148), (365, 141112), (569, 90520), (584, 88195), (620, 83074), (730, 70556), (1138, 45260), (1240, 41537), (1460, 35278), (2263, 22760), (2276, 22630), (2845, 18104), (2920, 17639), (4526, 11380), (4552, 11315), (5690, 9052)]