18668260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3779}}^1$

素因数の和:3820

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 25784540

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3779, 4940, 7558, 15116, 18895, 37790, 49127, 71801, 75580, 98254, 143602, 196508, 245635, 287204, 359005, 491270, 718010, 933413, 982540, 1436020, 1866826, 3733652, 4667065, 9334130, 18668260]

約数ペア:

[(1, 18668260), (2, 9334130), (4, 4667065), (5, 3733652), (10, 1866826), (13, 1436020), (19, 982540), (20, 933413), (26, 718010), (38, 491270), (52, 359005), (65, 287204), (76, 245635), (95, 196508), (130, 143602), (190, 98254), (247, 75580), (260, 71801), (380, 49127), (494, 37790), (988, 18895), (1235, 15116), (2470, 7558), (3779, 4940)]