404718940

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{379}}^1\times {\mathrm{499}}^1$

素因数の和:994

約数の個数: 48

約数和(自身を含む): 861840000

約数和(自身を除く): 457121060

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 379, 428, 499, 535, 758, 998, 1070, 1516, 1895, 1996, 2140, 2495, 3790, 4990, 7580, 9980, 40553, 53393, 81106, 106786, 162212, 189121, 202765, 213572, 266965, 378242, 405530, 533930, 756484, 811060, 945605, 1067860, 1891210, 3782420, 20235947, 40471894, 80943788, 101179735, 202359470, 404718940]

約数ペア:

[(1, 404718940), (2, 202359470), (4, 101179735), (5, 80943788), (10, 40471894), (20, 20235947), (107, 3782420), (214, 1891210), (379, 1067860), (428, 945605), (499, 811060), (535, 756484), (758, 533930), (998, 405530), (1070, 378242), (1516, 266965), (1895, 213572), (1996, 202765), (2140, 189121), (2495, 162212), (3790, 106786), (4990, 81106), (7580, 53393), (9980, 40553)]