28127450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 57001560

約数和(自身を除く): 28874110

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 109, 130, 218, 325, 397, 545, 650, 794, 1090, 1417, 1985, 2725, 2834, 3970, 5161, 5450, 7085, 9925, 10322, 14170, 19850, 25805, 35425, 43273, 51610, 70850, 86546, 129025, 216365, 258050, 432730, 562549, 1081825, 1125098, 2163650, 2812745, 5625490, 14063725, 28127450]

約数ペア:

[(1, 28127450), (2, 14063725), (5, 5625490), (10, 2812745), (13, 2163650), (25, 1125098), (26, 1081825), (50, 562549), (65, 432730), (109, 258050), (130, 216365), (218, 129025), (325, 86546), (397, 70850), (545, 51610), (650, 43273), (794, 35425), (1090, 25805), (1417, 19850), (1985, 14170), (2725, 10322), (2834, 9925), (3970, 7085), (5161, 5450)]