1320222380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{40031}}^1$

素因数の和:40154

約数の個数: 48

約数和(自身を含む): 2965890816

約数和(自身を除く): 1645668436

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 97, 170, 194, 340, 388, 485, 970, 1649, 1940, 3298, 6596, 8245, 16490, 32980, 40031, 80062, 160124, 200155, 400310, 680527, 800620, 1361054, 2722108, 3402635, 3883007, 6805270, 7766014, 13610540, 15532028, 19415035, 38830070, 66011119, 77660140, 132022238, 264044476, 330055595, 660111190, 1320222380]

約数ペア:

[(1, 1320222380), (2, 660111190), (4, 330055595), (5, 264044476), (10, 132022238), (17, 77660140), (20, 66011119), (34, 38830070), (68, 19415035), (85, 15532028), (97, 13610540), (170, 7766014), (194, 6805270), (340, 3883007), (388, 3402635), (485, 2722108), (970, 1361054), (1649, 800620), (1940, 680527), (3298, 400310), (6596, 200155), (8245, 160124), (16490, 80062), (32980, 40031)]