61220375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 81432000

約数和(自身を除く): 20211625

約数列:

[1, 5, 19, 25, 95, 125, 149, 173, 475, 745, 865, 2375, 2831, 3287, 3725, 4325, 14155, 16435, 18625, 21625, 25777, 70775, 82175, 128885, 353875, 410875, 489763, 644425, 2448815, 3222125, 12244075, 61220375]

約数ペア:

[(1, 61220375), (5, 12244075), (19, 3222125), (25, 2448815), (95, 644425), (125, 489763), (149, 410875), (173, 353875), (475, 128885), (745, 82175), (865, 70775), (2375, 25777), (2831, 21625), (3287, 18625), (3725, 16435), (4325, 14155)]