31721925

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 55978560

約数和(自身を除く): 24256635

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 113, 197, 285, 339, 475, 565, 591, 985, 1425, 1695, 2147, 2825, 2955, 3743, 4925, 6441, 8475, 10735, 11229, 14775, 18715, 22261, 32205, 53675, 56145, 66783, 93575, 111305, 161025, 280725, 333915, 422959, 556525, 1268877, 1669575, 2114795, 6344385, 10573975, 31721925]

約数ペア:

[(1, 31721925), (3, 10573975), (5, 6344385), (15, 2114795), (19, 1669575), (25, 1268877), (57, 556525), (75, 422959), (95, 333915), (113, 280725), (197, 161025), (285, 111305), (339, 93575), (475, 66783), (565, 56145), (591, 53675), (985, 32205), (1425, 22261), (1695, 18715), (2147, 14775), (2825, 11229), (2955, 10735), (3743, 8475), (4925, 6441)]