68358125

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:255

約数の個数: 40

約数和(自身を含む): 95294496

約数和(自身を除く): 26936371

約数列:

[1, 5, 11, 25, 55, 61, 125, 163, 275, 305, 625, 671, 815, 1375, 1525, 1793, 3355, 4075, 6875, 7625, 8965, 9943, 16775, 20375, 38125, 44825, 49715, 83875, 101875, 109373, 224125, 248575, 419375, 546865, 1120625, 1242875, 2734325, 6214375, 13671625, 68358125]

約数ペア:

[(1, 68358125), (5, 13671625), (11, 6214375), (25, 2734325), (55, 1242875), (61, 1120625), (125, 546865), (163, 419375), (275, 248575), (305, 224125), (625, 109373), (671, 101875), (815, 83875), (1375, 49715), (1525, 44825), (1793, 38125), (3355, 20375), (4075, 16775), (6875, 9943), (7625, 8965)]