69876860

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 149822400

約数和(自身を除く): 79945540

約数列:

[1, 2, 4, 5, 10, 20, 97, 181, 194, 199, 362, 388, 398, 485, 724, 796, 905, 970, 995, 1810, 1940, 1990, 3620, 3980, 17557, 19303, 35114, 36019, 38606, 70228, 72038, 77212, 87785, 96515, 144076, 175570, 180095, 193030, 351140, 360190, 386060, 720380, 3493843, 6987686, 13975372, 17469215, 34938430, 69876860]

約数ペア:

[(1, 69876860), (2, 34938430), (4, 17469215), (5, 13975372), (10, 6987686), (20, 3493843), (97, 720380), (181, 386060), (194, 360190), (199, 351140), (362, 193030), (388, 180095), (398, 175570), (485, 144076), (724, 96515), (796, 87785), (905, 77212), (970, 72038), (995, 70228), (1810, 38606), (1940, 36019), (1990, 35114), (3620, 19303), (3980, 17557)]