71777980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1\times {\mathrm{233}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 154181664

約数和(自身を除く): 82403684

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 211, 233, 292, 365, 422, 466, 730, 844, 932, 1055, 1165, 1460, 2110, 2330, 4220, 4660, 15403, 17009, 30806, 34018, 49163, 61612, 68036, 77015, 85045, 98326, 154030, 170090, 196652, 245815, 308060, 340180, 491630, 983260, 3588899, 7177798, 14355596, 17944495, 35888990, 71777980]

約数ペア:

[(1, 71777980), (2, 35888990), (4, 17944495), (5, 14355596), (10, 7177798), (20, 3588899), (73, 983260), (146, 491630), (211, 340180), (233, 308060), (292, 245815), (365, 196652), (422, 170090), (466, 154030), (730, 98326), (844, 85045), (932, 77015), (1055, 68036), (1165, 61612), (1460, 49163), (2110, 34018), (2330, 30806), (4220, 17009), (4660, 15403)]