20906090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3967}}^1$

素因数の和:4022

約数の個数: 32

約数和(自身を含む): 41140224

約数和(自身を除く): 20234134

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 310, 527, 1054, 2635, 3967, 5270, 7934, 19835, 39670, 67439, 122977, 134878, 245954, 337195, 614885, 674390, 1229770, 2090609, 4181218, 10453045, 20906090]

約数ペア:

[(1, 20906090), (2, 10453045), (5, 4181218), (10, 2090609), (17, 1229770), (31, 674390), (34, 614885), (62, 337195), (85, 245954), (155, 134878), (170, 122977), (310, 67439), (527, 39670), (1054, 19835), (2635, 7934), (3967, 5270)]