18854875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{283}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 26050752

約数和(自身を除く): 7195877

約数列:

[1, 5, 13, 25, 41, 65, 125, 205, 283, 325, 533, 1025, 1415, 1625, 2665, 3679, 5125, 7075, 11603, 13325, 18395, 35375, 58015, 66625, 91975, 150839, 290075, 459875, 754195, 1450375, 3770975, 18854875]

約数ペア:

[(1, 18854875), (5, 3770975), (13, 1450375), (25, 754195), (41, 459875), (65, 290075), (125, 150839), (205, 91975), (283, 66625), (325, 58015), (533, 35375), (1025, 18395), (1415, 13325), (1625, 11603), (2665, 7075), (3679, 5125)]