646592009

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 773450496

約数和(自身を除く): 126858487

約数列:

[1, 7, 61, 67, 97, 233, 427, 469, 679, 1631, 4087, 5917, 6499, 14213, 15611, 22601, 28609, 41419, 45493, 99491, 109277, 158207, 396439, 952271, 1378661, 1514267, 2775073, 6665897, 9650627, 10599869, 92370287, 646592009]

約数ペア:

[(1, 646592009), (7, 92370287), (61, 10599869), (67, 9650627), (97, 6665897), (233, 2775073), (427, 1514267), (469, 1378661), (679, 952271), (1631, 396439), (4087, 158207), (5917, 109277), (6499, 99491), (14213, 45493), (15611, 41419), (22601, 28609)]