220172420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{11927}}^1$

素因数の和:12020

約数の個数: 48

約数和(自身を含む): 504983808

約数和(自身を除く): 284811388

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 923, 1420, 1846, 3692, 4615, 9230, 11927, 18460, 23854, 47708, 59635, 119270, 155051, 238540, 310102, 620204, 775255, 846817, 1550510, 1693634, 3101020, 3387268, 4234085, 8468170, 11008621, 16936340, 22017242, 44034484, 55043105, 110086210, 220172420]

約数ペア:

[(1, 220172420), (2, 110086210), (4, 55043105), (5, 44034484), (10, 22017242), (13, 16936340), (20, 11008621), (26, 8468170), (52, 4234085), (65, 3387268), (71, 3101020), (130, 1693634), (142, 1550510), (260, 846817), (284, 775255), (355, 620204), (710, 310102), (923, 238540), (1420, 155051), (1846, 119270), (3692, 59635), (4615, 47708), (9230, 23854), (11927, 18460)]