20131640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26489}}^1$

素因数の和:26519

約数の個数: 32

約数和(自身を含む): 47682000

約数和(自身を除く): 27550360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 26489, 52978, 105956, 132445, 211912, 264890, 503291, 529780, 1006582, 1059560, 2013164, 2516455, 4026328, 5032910, 10065820, 20131640]

約数ペア:

[(1, 20131640), (2, 10065820), (4, 5032910), (5, 4026328), (8, 2516455), (10, 2013164), (19, 1059560), (20, 1006582), (38, 529780), (40, 503291), (76, 264890), (95, 211912), (152, 132445), (190, 105956), (380, 52978), (760, 26489)]