2321990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:149

約数の個数: 48

約数和(自身を含む): 4883760

約数和(自身を除く): 2561770

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 101, 110, 121, 190, 202, 209, 242, 418, 505, 605, 1010, 1045, 1111, 1210, 1919, 2090, 2222, 2299, 3838, 4598, 5555, 9595, 11110, 11495, 12221, 19190, 21109, 22990, 24442, 42218, 61105, 105545, 122210, 211090, 232199, 464398, 1160995, 2321990]

約数ペア:

[(1, 2321990), (2, 1160995), (5, 464398), (10, 232199), (11, 211090), (19, 122210), (22, 105545), (38, 61105), (55, 42218), (95, 24442), (101, 22990), (110, 21109), (121, 19190), (190, 12221), (202, 11495), (209, 11110), (242, 9595), (418, 5555), (505, 4598), (605, 3838), (1010, 2299), (1045, 2222), (1111, 2090), (1210, 1919)]