127640920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2087}}^1$

素因数の和:2248

約数の個数: 64

約数和(自身を含む): 315705600

約数和(自身を除く): 188064680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 139, 220, 278, 440, 556, 695, 1112, 1390, 1529, 2087, 2780, 3058, 4174, 5560, 6116, 7645, 8348, 10435, 12232, 15290, 16696, 20870, 22957, 30580, 41740, 45914, 61160, 83480, 91828, 114785, 183656, 229570, 290093, 459140, 580186, 918280, 1160372, 1450465, 2320744, 2900930, 3191023, 5801860, 6382046, 11603720, 12764092, 15955115, 25528184, 31910230, 63820460, 127640920]

約数ペア:

[(1, 127640920), (2, 63820460), (4, 31910230), (5, 25528184), (8, 15955115), (10, 12764092), (11, 11603720), (20, 6382046), (22, 5801860), (40, 3191023), (44, 2900930), (55, 2320744), (88, 1450465), (110, 1160372), (139, 918280), (220, 580186), (278, 459140), (440, 290093), (556, 229570), (695, 183656), (1112, 114785), (1390, 91828), (1529, 83480), (2087, 61160), (2780, 45914), (3058, 41740), (4174, 30580), (5560, 22957), (6116, 20870), (7645, 16696), (8348, 15290), (10435, 12232)]