20131990120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45754523}}^1$

素因数の和:45754545

約数の個数: 32

約数和(自身を含む): 49414885920

約数和(自身を除く): 29282895800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45754523, 91509046, 183018092, 228772615, 366036184, 457545230, 503299753, 915090460, 1006599506, 1830180920, 2013199012, 2516498765, 4026398024, 5032997530, 10065995060, 20131990120]

約数ペア:

[(1, 20131990120), (2, 10065995060), (4, 5032997530), (5, 4026398024), (8, 2516498765), (10, 2013199012), (11, 1830180920), (20, 1006599506), (22, 915090460), (40, 503299753), (44, 457545230), (55, 366036184), (88, 228772615), (110, 183018092), (220, 91509046), (440, 45754523)]