81551515

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{23201}}^1$

素因数の和:23262

約数の個数: 16

約数和(自身を含む): 105801120

約数和(自身を除く): 24249605

約数列:

[1, 5, 19, 37, 95, 185, 703, 3515, 23201, 116005, 440819, 858437, 2204095, 4292185, 16310303, 81551515]

約数ペア:

[(1, 81551515), (5, 16310303), (19, 4292185), (37, 2204095), (95, 858437), (185, 440819), (703, 116005), (3515, 23201)]