20187712820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2480063}}^1$

素因数の和:2480120

約数の個数: 48

約数和(自身を含む): 47498185728

約数和(自身を除く): 27310472908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 4070, 8140, 2480063, 4960126, 9920252, 12400315, 24800630, 27280693, 49601260, 54561386, 91762331, 109122772, 136403465, 183524662, 272806930, 367049324, 458811655, 545613860, 917623310, 1009385641, 1835246620, 2018771282, 4037542564, 5046928205, 10093856410, 20187712820]

約数ペア:

[(1, 20187712820), (2, 10093856410), (4, 5046928205), (5, 4037542564), (10, 2018771282), (11, 1835246620), (20, 1009385641), (22, 917623310), (37, 545613860), (44, 458811655), (55, 367049324), (74, 272806930), (110, 183524662), (148, 136403465), (185, 109122772), (220, 91762331), (370, 54561386), (407, 49601260), (740, 27280693), (814, 24800630), (1628, 12400315), (2035, 9920252), (4070, 4960126), (8140, 2480063)]