39840020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{3853}}^1$

素因数の和:3920

約数の個数: 48

約数和(自身を含む): 93235968

約数和(自身を除く): 53395948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 2068, 2585, 3853, 5170, 7706, 10340, 15412, 19265, 38530, 42383, 77060, 84766, 169532, 181091, 211915, 362182, 423830, 724364, 847660, 905455, 1810910, 1992001, 3621820, 3984002, 7968004, 9960005, 19920010, 39840020]

約数ペア:

[(1, 39840020), (2, 19920010), (4, 9960005), (5, 7968004), (10, 3984002), (11, 3621820), (20, 1992001), (22, 1810910), (44, 905455), (47, 847660), (55, 724364), (94, 423830), (110, 362182), (188, 211915), (220, 181091), (235, 169532), (470, 84766), (517, 77060), (940, 42383), (1034, 38530), (2068, 19265), (2585, 15412), (3853, 10340), (5170, 7706)]