8461780

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 18506880

約数和(自身を除く): 10045100

約数列:

[1, 2, 4, 5, 10, 20, 59, 71, 101, 118, 142, 202, 236, 284, 295, 355, 404, 505, 590, 710, 1010, 1180, 1420, 2020, 4189, 5959, 7171, 8378, 11918, 14342, 16756, 20945, 23836, 28684, 29795, 35855, 41890, 59590, 71710, 83780, 119180, 143420, 423089, 846178, 1692356, 2115445, 4230890, 8461780]

約数ペア:

[(1, 8461780), (2, 4230890), (4, 2115445), (5, 1692356), (10, 846178), (20, 423089), (59, 143420), (71, 119180), (101, 83780), (118, 71710), (142, 59590), (202, 41890), (236, 35855), (284, 29795), (295, 28684), (355, 23836), (404, 20945), (505, 16756), (590, 14342), (710, 11918), (1010, 8378), (1180, 7171), (1420, 5959), (2020, 4189)]