205509980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{13397}}^1$

素因数の和:13478

約数の個数: 48

約数和(自身を含む): 472681440

約数和(自身を除く): 267171460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 236, 260, 295, 590, 767, 1180, 1534, 3068, 3835, 7670, 13397, 15340, 26794, 53588, 66985, 133970, 174161, 267940, 348322, 696644, 790423, 870805, 1580846, 1741610, 3161692, 3483220, 3952115, 7904230, 10275499, 15808460, 20550998, 41101996, 51377495, 102754990, 205509980]

約数ペア:

[(1, 205509980), (2, 102754990), (4, 51377495), (5, 41101996), (10, 20550998), (13, 15808460), (20, 10275499), (26, 7904230), (52, 3952115), (59, 3483220), (65, 3161692), (118, 1741610), (130, 1580846), (236, 870805), (260, 790423), (295, 696644), (590, 348322), (767, 267940), (1180, 174161), (1534, 133970), (3068, 66985), (3835, 53588), (7670, 26794), (13397, 15340)]