12887785

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 17390592

約数和(自身を除く): 4502807

約数列:

[1, 5, 17, 31, 67, 73, 85, 155, 335, 365, 527, 1139, 1241, 2077, 2263, 2635, 4891, 5695, 6205, 10385, 11315, 24455, 35309, 38471, 83147, 151621, 176545, 192355, 415735, 758105, 2577557, 12887785]

約数ペア:

[(1, 12887785), (5, 2577557), (17, 758105), (31, 415735), (67, 192355), (73, 176545), (85, 151621), (155, 83147), (335, 38471), (365, 35309), (527, 24455), (1139, 11315), (1241, 10385), (2077, 6205), (2263, 5695), (2635, 4891)]