172457960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139079}}^1$

素因数の和:139121

約数の個数: 32

約数和(自身を含む): 400550400

約数和(自身を除く): 228092440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 139079, 278158, 556316, 695395, 1112632, 1390790, 2781580, 4311449, 5563160, 8622898, 17245796, 21557245, 34491592, 43114490, 86228980, 172457960]

約数ペア:

[(1, 172457960), (2, 86228980), (4, 43114490), (5, 34491592), (8, 21557245), (10, 17245796), (20, 8622898), (31, 5563160), (40, 4311449), (62, 2781580), (124, 1390790), (155, 1112632), (248, 695395), (310, 556316), (620, 278158), (1240, 139079)]