199320440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{3259}}^1$

素因数の和:3420

約数の個数: 64

約数和(自身を含む): 492912000

約数和(自身を除く): 293591560

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, 2780, 3058, 3259, 5560, 6116, 6518, 7645, 12232, 13036, 15290, 16295, 26072, 30580, 32590, 35849, 61160, 65180, 71698, 130360, 143396, 179245, 286792, 358490, 453001, 716980, 906002, 1433960, 1812004, 2265005, 3624008, 4530010, 4983011, 9060020, 9966022, 18120040, 19932044, 24915055, 39864088, 49830110, 99660220, 199320440]

約数ペア:

[(1, 199320440), (2, 99660220), (4, 49830110), (5, 39864088), (8, 24915055), (10, 19932044), (11, 18120040), (20, 9966022), (22, 9060020), (40, 4983011), (44, 4530010), (55, 3624008), (88, 2265005), (110, 1812004), (139, 1433960), (220, 906002), (278, 716980), (440, 453001), (556, 358490), (695, 286792), (1112, 179245), (1390, 143396), (1529, 130360), (2780, 71698), (3058, 65180), (3259, 61160), (5560, 35849), (6116, 32590), (6518, 30580), (7645, 26072), (12232, 16295), (13036, 15290)]