84869980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{727}}^1$

素因数の和:1198

約数の個数: 48

約数和(自身を含む): 192628800

約数和(自身を除く): 107758820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 449, 727, 898, 1454, 1796, 2245, 2908, 3635, 4490, 5837, 7270, 8980, 9451, 11674, 14540, 18902, 23348, 29185, 37804, 47255, 58370, 94510, 116740, 189020, 326423, 652846, 1305692, 1632115, 3264230, 4243499, 6528460, 8486998, 16973996, 21217495, 42434990, 84869980]

約数ペア:

[(1, 84869980), (2, 42434990), (4, 21217495), (5, 16973996), (10, 8486998), (13, 6528460), (20, 4243499), (26, 3264230), (52, 1632115), (65, 1305692), (130, 652846), (260, 326423), (449, 189020), (727, 116740), (898, 94510), (1454, 58370), (1796, 47255), (2245, 37804), (2908, 29185), (3635, 23348), (4490, 18902), (5837, 14540), (7270, 11674), (8980, 9451)]