20128015895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{122251}}^1$

素因数の和:122435

約数の個数: 32

約数和(自身を含む): 27726753600

約数和(自身を除く): 7598737705

約数列:

[1, 5, 13, 17, 65, 85, 149, 221, 745, 1105, 1937, 2533, 9685, 12665, 32929, 122251, 164645, 611255, 1589263, 2078267, 7946315, 10391335, 18215399, 27017471, 91076995, 135087355, 236800187, 309661783, 1184000935, 1548308915, 4025603179, 20128015895]

約数ペア:

[(1, 20128015895), (5, 4025603179), (13, 1548308915), (17, 1184000935), (65, 309661783), (85, 236800187), (149, 135087355), (221, 91076995), (745, 27017471), (1105, 18215399), (1937, 10391335), (2533, 7946315), (9685, 2078267), (12665, 1589263), (32929, 611255), (122251, 164645)]