12742900

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{2089}}^1$

素因数の和:2164

約数の個数: 36

約数和(自身を含む): 28118860

約数和(自身を除く): 15375960

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 2089, 3050, 4178, 6100, 8356, 10445, 20890, 41780, 52225, 104450, 127429, 208900, 254858, 509716, 637145, 1274290, 2548580, 3185725, 6371450, 12742900]

約数ペア:

[(1, 12742900), (2, 6371450), (4, 3185725), (5, 2548580), (10, 1274290), (20, 637145), (25, 509716), (50, 254858), (61, 208900), (100, 127429), (122, 104450), (244, 52225), (305, 41780), (610, 20890), (1220, 10445), (1525, 8356), (2089, 6100), (3050, 4178)]