493691140

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1\times {\mathrm{761}}^1$

素因数の和:1132

約数の個数: 48

約数和(自身を含む): 1049731200

約数和(自身を除く): 556040060

約数列:

[1, 2, 4, 5, 10, 20, 163, 199, 326, 398, 652, 761, 796, 815, 995, 1522, 1630, 1990, 3044, 3260, 3805, 3980, 7610, 15220, 32437, 64874, 124043, 129748, 151439, 162185, 248086, 302878, 324370, 496172, 605756, 620215, 648740, 757195, 1240430, 1514390, 2480860, 3028780, 24684557, 49369114, 98738228, 123422785, 246845570, 493691140]

約数ペア:

[(1, 493691140), (2, 246845570), (4, 123422785), (5, 98738228), (10, 49369114), (20, 24684557), (163, 3028780), (199, 2480860), (326, 1514390), (398, 1240430), (652, 757195), (761, 648740), (796, 620215), (815, 605756), (995, 496172), (1522, 324370), (1630, 302878), (1990, 248086), (3044, 162185), (3260, 151439), (3805, 129748), (3980, 124043), (7610, 64874), (15220, 32437)]