28784375

素因数分解:

$5^5\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:237

約数の個数: 24

約数和(自身を含む): 36810144

約数和(自身を除く): 8025769

約数列:

[1, 5, 25, 61, 125, 151, 305, 625, 755, 1525, 3125, 3775, 7625, 9211, 18875, 38125, 46055, 94375, 190625, 230275, 471875, 1151375, 5756875, 28784375]

約数ペア:

[(1, 28784375), (5, 5756875), (25, 1151375), (61, 471875), (125, 230275), (151, 190625), (305, 94375), (625, 46055), (755, 38125), (1525, 18875), (3125, 9211), (3775, 7625)]