139718875

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:784

約数の個数: 32

約数和(自身を含む): 185889600

約数和(自身を除く): 46170725

約数列:

[1, 5, 19, 25, 89, 95, 125, 445, 475, 661, 1691, 2225, 2375, 3305, 8455, 11125, 12559, 16525, 42275, 58829, 62795, 82625, 211375, 294145, 313975, 1117751, 1470725, 1569875, 5588755, 7353625, 27943775, 139718875]

約数ペア:

[(1, 139718875), (5, 27943775), (19, 7353625), (25, 5588755), (89, 1569875), (95, 1470725), (125, 1117751), (445, 313975), (475, 294145), (661, 211375), (1691, 82625), (2225, 62795), (2375, 58829), (3305, 42275), (8455, 16525), (11125, 12559)]