20311375

素因数分解:

$5^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:328

約数の個数: 32

約数和(自身を含む): 29352960

約数和(自身を除く): 9041585

約数列:

[1, 5, 7, 25, 35, 125, 139, 167, 175, 695, 835, 875, 973, 1169, 3475, 4175, 4865, 5845, 17375, 20875, 23213, 24325, 29225, 116065, 121625, 146125, 162491, 580325, 812455, 2901625, 4062275, 20311375]

約数ペア:

[(1, 20311375), (5, 4062275), (7, 2901625), (25, 812455), (35, 580325), (125, 162491), (139, 146125), (167, 121625), (175, 116065), (695, 29225), (835, 24325), (875, 23213), (973, 20875), (1169, 17375), (3475, 5845), (4175, 4865)]