427780

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 913752

約数和(自身を除く): 485972

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 293, 365, 586, 730, 1172, 1460, 1465, 2930, 5860, 21389, 42778, 85556, 106945, 213890, 427780]

約数ペア:

[(1, 427780), (2, 213890), (4, 106945), (5, 85556), (10, 42778), (20, 21389), (73, 5860), (146, 2930), (292, 1465), (293, 1460), (365, 1172), (586, 730)]