20154160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19379}}^1$

素因数の和:19405

約数の個数: 40

約数和(自身を含む): 50465520

約数和(自身を除く): 30311360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19379, 38758, 77516, 96895, 155032, 193790, 251927, 310064, 387580, 503854, 775160, 1007708, 1259635, 1550320, 2015416, 2519270, 4030832, 5038540, 10077080, 20154160]

約数ペア:

[(1, 20154160), (2, 10077080), (4, 5038540), (5, 4030832), (8, 2519270), (10, 2015416), (13, 1550320), (16, 1259635), (20, 1007708), (26, 775160), (40, 503854), (52, 387580), (65, 310064), (80, 251927), (104, 193790), (130, 155032), (208, 96895), (260, 77516), (520, 38758), (1040, 19379)]