159339940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{4519}}^1$

素因数の和:4612

約数の個数: 48

約数和(自身を含む): 350824320

約数和(自身を除く): 191484380

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 820, 860, 1763, 3526, 4519, 7052, 8815, 9038, 17630, 18076, 22595, 35260, 45190, 90380, 185279, 194317, 370558, 388634, 741116, 777268, 926395, 971585, 1852790, 1943170, 3705580, 3886340, 7966997, 15933994, 31867988, 39834985, 79669970, 159339940]

約数ペア:

[(1, 159339940), (2, 79669970), (4, 39834985), (5, 31867988), (10, 15933994), (20, 7966997), (41, 3886340), (43, 3705580), (82, 1943170), (86, 1852790), (164, 971585), (172, 926395), (205, 777268), (215, 741116), (410, 388634), (430, 370558), (820, 194317), (860, 185279), (1763, 90380), (3526, 45190), (4519, 35260), (7052, 22595), (8815, 18076), (9038, 17630)]