28128315

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{251}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 46835712

約数和(自身を除く): 18707397

約数列:

[1, 3, 5, 15, 31, 93, 155, 241, 251, 465, 723, 753, 1205, 1255, 3615, 3765, 7471, 7781, 22413, 23343, 37355, 38905, 60491, 112065, 116715, 181473, 302455, 907365, 1875221, 5625663, 9376105, 28128315]

約数ペア:

[(1, 28128315), (3, 9376105), (5, 5625663), (15, 1875221), (31, 907365), (93, 302455), (155, 181473), (241, 116715), (251, 112065), (465, 60491), (723, 38905), (753, 37355), (1205, 23343), (1255, 22413), (3615, 7781), (3765, 7471)]