400726351870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{9911609}}^1$

素因数の和:9911940

約数の個数: 32

約数和(自身を含む): 779290424640

約数和(自身を除く): 378564072770

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 622, 1555, 3110, 4043, 8086, 20215, 40430, 9911609, 19823218, 49558045, 99116090, 128850917, 257701834, 644254585, 1288509170, 3082510399, 6165020798, 15412551995, 30825103990, 40072635187, 80145270374, 200363175935, 400726351870]

約数ペア:

[(1, 400726351870), (2, 200363175935), (5, 80145270374), (10, 40072635187), (13, 30825103990), (26, 15412551995), (65, 6165020798), (130, 3082510399), (311, 1288509170), (622, 644254585), (1555, 257701834), (3110, 128850917), (4043, 99116090), (8086, 49558045), (20215, 19823218), (40430, 9911609)]