828266540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{678907}}^1$

素因数の和:678977

約数の個数: 24

約数和(自身を含む): 1767876432

約数和(自身を除く): 939609892

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 678907, 1357814, 2715628, 3394535, 6789070, 13578140, 41413327, 82826654, 165653308, 207066635, 414133270, 828266540]

約数ペア:

[(1, 828266540), (2, 414133270), (4, 207066635), (5, 165653308), (10, 82826654), (20, 41413327), (61, 13578140), (122, 6789070), (244, 3394535), (305, 2715628), (610, 1357814), (1220, 678907)]