78822040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1\times {\mathrm{499}}^1$

素因数の和:880

約数の個数: 64

約数和(自身を含む): 194400000

約数和(自身を除く): 115577960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 359, 440, 499, 718, 998, 1436, 1795, 1996, 2495, 2872, 3590, 3949, 3992, 4990, 5489, 7180, 7898, 9980, 10978, 14360, 15796, 19745, 19960, 21956, 27445, 31592, 39490, 43912, 54890, 78980, 109780, 157960, 179141, 219560, 358282, 716564, 895705, 1433128, 1791410, 1970551, 3582820, 3941102, 7165640, 7882204, 9852755, 15764408, 19705510, 39411020, 78822040]

約数ペア:

[(1, 78822040), (2, 39411020), (4, 19705510), (5, 15764408), (8, 9852755), (10, 7882204), (11, 7165640), (20, 3941102), (22, 3582820), (40, 1970551), (44, 1791410), (55, 1433128), (88, 895705), (110, 716564), (220, 358282), (359, 219560), (440, 179141), (499, 157960), (718, 109780), (998, 78980), (1436, 54890), (1795, 43912), (1996, 39490), (2495, 31592), (2872, 27445), (3590, 21956), (3949, 19960), (3992, 19745), (4990, 15796), (5489, 14360), (7180, 10978), (7898, 9980)]