10400980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 23304960

約数和(自身を除く): 12903980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 271, 380, 404, 505, 542, 1010, 1084, 1355, 1919, 2020, 2710, 3838, 5149, 5420, 7676, 9595, 10298, 19190, 20596, 25745, 27371, 38380, 51490, 54742, 102980, 109484, 136855, 273710, 520049, 547420, 1040098, 2080196, 2600245, 5200490, 10400980]

約数ペア:

[(1, 10400980), (2, 5200490), (4, 2600245), (5, 2080196), (10, 1040098), (19, 547420), (20, 520049), (38, 273710), (76, 136855), (95, 109484), (101, 102980), (190, 54742), (202, 51490), (271, 38380), (380, 27371), (404, 25745), (505, 20596), (542, 19190), (1010, 10298), (1084, 9595), (1355, 7676), (1919, 5420), (2020, 5149), (2710, 3838)]