804590020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{971}}^1\times {\mathrm{3187}}^1$

素因数の和:4180

約数の個数: 48

約数和(自身を含む): 1822056768

約数和(自身を除く): 1017466748

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 971, 1942, 3187, 3884, 4855, 6374, 9710, 12623, 12748, 15935, 19420, 25246, 31870, 41431, 50492, 63115, 63740, 82862, 126230, 165724, 207155, 252460, 414310, 828620, 3094577, 6189154, 12378308, 15472885, 30945770, 40229501, 61891540, 80459002, 160918004, 201147505, 402295010, 804590020]

約数ペア:

[(1, 804590020), (2, 402295010), (4, 201147505), (5, 160918004), (10, 80459002), (13, 61891540), (20, 40229501), (26, 30945770), (52, 15472885), (65, 12378308), (130, 6189154), (260, 3094577), (971, 828620), (1942, 414310), (3187, 252460), (3884, 207155), (4855, 165724), (6374, 126230), (9710, 82862), (12623, 63740), (12748, 63115), (15935, 50492), (19420, 41431), (25246, 31870)]