69358220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 149469600

約数和(自身を除く): 80111380

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 139, 244, 278, 305, 409, 556, 610, 695, 818, 1220, 1390, 1636, 2045, 2780, 4090, 8180, 8479, 16958, 24949, 33916, 42395, 49898, 56851, 84790, 99796, 113702, 124745, 169580, 227404, 249490, 284255, 498980, 568510, 1137020, 3467911, 6935822, 13871644, 17339555, 34679110, 69358220]

約数ペア:

[(1, 69358220), (2, 34679110), (4, 17339555), (5, 13871644), (10, 6935822), (20, 3467911), (61, 1137020), (122, 568510), (139, 498980), (244, 284255), (278, 249490), (305, 227404), (409, 169580), (556, 124745), (610, 113702), (695, 99796), (818, 84790), (1220, 56851), (1390, 49898), (1636, 42395), (2045, 33916), (2780, 24949), (4090, 16958), (8180, 8479)]