20106515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{461}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 28873152

約数和(自身を除く): 8766637

約数列:

[1, 5, 11, 13, 55, 61, 65, 143, 305, 461, 671, 715, 793, 2305, 3355, 3965, 5071, 5993, 8723, 25355, 28121, 29965, 43615, 65923, 140605, 309331, 329615, 365573, 1546655, 1827865, 4021303, 20106515]

約数ペア:

[(1, 20106515), (5, 4021303), (11, 1827865), (13, 1546655), (55, 365573), (61, 329615), (65, 309331), (143, 140605), (305, 65923), (461, 43615), (671, 29965), (715, 28121), (793, 25355), (2305, 8723), (3355, 5993), (3965, 5071)]