39988390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{10607}}^1$

素因数の和:10656

約数の個数: 32

約数和(自身を含む): 80196480

約数和(自身を除く): 40208090

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 10607, 21214, 53035, 106070, 137891, 275782, 307603, 615206, 689455, 1378910, 1538015, 3076030, 3998839, 7997678, 19994195, 39988390]

約数ペア:

[(1, 39988390), (2, 19994195), (5, 7997678), (10, 3998839), (13, 3076030), (26, 1538015), (29, 1378910), (58, 689455), (65, 615206), (130, 307603), (145, 275782), (290, 137891), (377, 106070), (754, 53035), (1885, 21214), (3770, 10607)]