20804985370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8423071}}^1$

素因数の和:8423110

約数の個数: 32

約数和(自身を含む): 42452282880

約数和(自身を除く): 21647297510

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8423071, 16846142, 42115355, 84230710, 109499923, 160038349, 218999846, 320076698, 547499615, 800191745, 1094999230, 1600383490, 2080498537, 4160997074, 10402492685, 20804985370]

約数ペア:

[(1, 20804985370), (2, 10402492685), (5, 4160997074), (10, 2080498537), (13, 1600383490), (19, 1094999230), (26, 800191745), (38, 547499615), (65, 320076698), (95, 218999846), (130, 160038349), (190, 109499923), (247, 84230710), (494, 42115355), (1235, 16846142), (2470, 8423071)]