30498740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 65856000

約数和(自身を除く): 35357260

約数列:

[1, 2, 4, 5, 10, 20, 79, 97, 158, 194, 199, 316, 388, 395, 398, 485, 790, 796, 970, 995, 1580, 1940, 1990, 3980, 7663, 15326, 15721, 19303, 30652, 31442, 38315, 38606, 62884, 76630, 77212, 78605, 96515, 153260, 157210, 193030, 314420, 386060, 1524937, 3049874, 6099748, 7624685, 15249370, 30498740]

約数ペア:

[(1, 30498740), (2, 15249370), (4, 7624685), (5, 6099748), (10, 3049874), (20, 1524937), (79, 386060), (97, 314420), (158, 193030), (194, 157210), (199, 153260), (316, 96515), (388, 78605), (395, 77212), (398, 76630), (485, 62884), (790, 38606), (796, 38315), (970, 31442), (995, 30652), (1580, 19303), (1940, 15721), (1990, 15326), (3980, 7663)]