320400004

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{641}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 603993600

約数和(自身を除く): 283593596

約数列:

[1, 2, 4, 29, 31, 58, 62, 116, 124, 139, 278, 556, 641, 899, 1282, 1798, 2564, 3596, 4031, 4309, 8062, 8618, 16124, 17236, 18589, 19871, 37178, 39742, 74356, 79484, 89099, 124961, 178198, 249922, 356396, 499844, 576259, 1152518, 2305036, 2583871, 2762069, 5167742, 5524138, 10335484, 11048276, 80100001, 160200002, 320400004]

約数ペア:

[(1, 320400004), (2, 160200002), (4, 80100001), (29, 11048276), (31, 10335484), (58, 5524138), (62, 5167742), (116, 2762069), (124, 2583871), (139, 2305036), (278, 1152518), (556, 576259), (641, 499844), (899, 356396), (1282, 249922), (1798, 178198), (2564, 124961), (3596, 89099), (4031, 79484), (4309, 74356), (8062, 39742), (8618, 37178), (16124, 19871), (17236, 18589)]