20464090

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 40074552

約数和(自身を除く): 19610462

約数列:

[1, 2, 5, 10, 17, 34, 73, 85, 97, 146, 170, 194, 289, 365, 485, 578, 730, 970, 1241, 1445, 1649, 2482, 2890, 3298, 6205, 7081, 8245, 12410, 14162, 16490, 21097, 28033, 35405, 42194, 56066, 70810, 105485, 120377, 140165, 210970, 240754, 280330, 601885, 1203770, 2046409, 4092818, 10232045, 20464090]

約数ペア:

[(1, 20464090), (2, 10232045), (5, 4092818), (10, 2046409), (17, 1203770), (34, 601885), (73, 280330), (85, 240754), (97, 210970), (146, 140165), (170, 120377), (194, 105485), (289, 70810), (365, 56066), (485, 42194), (578, 35405), (730, 28033), (970, 21097), (1241, 16490), (1445, 14162), (1649, 12410), (2482, 8245), (2890, 7081), (3298, 6205)]