194625980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 416640000

約数和(自身を除く): 222014020

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 199, 316, 395, 398, 619, 790, 796, 995, 1238, 1580, 1990, 2476, 3095, 3980, 6190, 12380, 15721, 31442, 48901, 62884, 78605, 97802, 123181, 157210, 195604, 244505, 246362, 314420, 489010, 492724, 615905, 978020, 1231810, 2463620, 9731299, 19462598, 38925196, 48656495, 97312990, 194625980]

約数ペア:

[(1, 194625980), (2, 97312990), (4, 48656495), (5, 38925196), (10, 19462598), (20, 9731299), (79, 2463620), (158, 1231810), (199, 978020), (316, 615905), (395, 492724), (398, 489010), (619, 314420), (790, 246362), (796, 244505), (995, 195604), (1238, 157210), (1580, 123181), (1990, 97802), (2476, 78605), (3095, 62884), (3980, 48901), (6190, 31442), (12380, 15721)]