90989979

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 128563200

約数和(自身を除く): 37573221

約数列:

[1, 3, 47, 61, 71, 141, 149, 183, 213, 447, 2867, 3337, 4331, 7003, 8601, 9089, 10011, 10579, 12993, 21009, 27267, 31737, 203557, 427183, 497213, 610671, 645319, 1281549, 1491639, 1935957, 30329993, 90989979]

約数ペア:

[(1, 90989979), (3, 30329993), (47, 1935957), (61, 1491639), (71, 1281549), (141, 645319), (149, 610671), (183, 497213), (213, 427183), (447, 203557), (2867, 31737), (3337, 27267), (4331, 21009), (7003, 12993), (8601, 10579), (9089, 10011)]