205303540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{2539}}^1$

素因数の和:2872

約数の個数: 48

約数和(自身を含む): 465978240

約数和(自身を除く): 260674700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 311, 622, 1244, 1555, 2539, 3110, 4043, 5078, 6220, 8086, 10156, 12695, 16172, 20215, 25390, 33007, 40430, 50780, 66014, 80860, 132028, 165035, 330070, 660140, 789629, 1579258, 3158516, 3948145, 7896290, 10265177, 15792580, 20530354, 41060708, 51325885, 102651770, 205303540]

約数ペア:

[(1, 205303540), (2, 102651770), (4, 51325885), (5, 41060708), (10, 20530354), (13, 15792580), (20, 10265177), (26, 7896290), (52, 3948145), (65, 3158516), (130, 1579258), (260, 789629), (311, 660140), (622, 330070), (1244, 165035), (1555, 132028), (2539, 80860), (3110, 66014), (4043, 50780), (5078, 40430), (6220, 33007), (8086, 25390), (10156, 20215), (12695, 16172)]