989897996

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{541}}^1\times {\mathrm{7499}}^1$

素因数の和:8105

約数の個数: 24

約数和(自身を含む): 1764210000

約数和(自身を除く): 774312004

約数列:

[1, 2, 4, 61, 122, 244, 541, 1082, 2164, 7499, 14998, 29996, 33001, 66002, 132004, 457439, 914878, 1829756, 4056959, 8113918, 16227836, 247474499, 494948998, 989897996]

約数ペア:

[(1, 989897996), (2, 494948998), (4, 247474499), (61, 16227836), (122, 8113918), (244, 4056959), (541, 1829756), (1082, 914878), (2164, 457439), (7499, 132004), (14998, 66002), (29996, 33001)]