28300280

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6869}}^1$

素因数の和:6983

約数の個数: 32

約数和(自身を含む): 64303200

約数和(自身を除く): 36002920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 6869, 13738, 27476, 34345, 54952, 68690, 137380, 274760, 707507, 1415014, 2830028, 3537535, 5660056, 7075070, 14150140, 28300280]

約数ペア:

[(1, 28300280), (2, 14150140), (4, 7075070), (5, 5660056), (8, 3537535), (10, 2830028), (20, 1415014), (40, 707507), (103, 274760), (206, 137380), (412, 68690), (515, 54952), (824, 34345), (1030, 27476), (2060, 13738), (4120, 6869)]