123402020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{16631}}^1$

素因数の和:16700

約数の個数: 48

約数和(自身を含む): 301771008

約数和(自身を除く): 178368988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 16631, 33262, 66524, 83155, 116417, 166310, 232834, 332620, 465668, 582085, 881443, 1164170, 1762886, 2328340, 3525772, 4407215, 6170101, 8814430, 12340202, 17628860, 24680404, 30850505, 61701010, 123402020]

約数ペア:

[(1, 123402020), (2, 61701010), (4, 30850505), (5, 24680404), (7, 17628860), (10, 12340202), (14, 8814430), (20, 6170101), (28, 4407215), (35, 3525772), (53, 2328340), (70, 1762886), (106, 1164170), (140, 881443), (212, 582085), (265, 465668), (371, 332620), (530, 232834), (742, 166310), (1060, 116417), (1484, 83155), (1855, 66524), (3710, 33262), (7420, 16631)]