57876820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 124185600

約数和(自身を除く): 66308780

約数列:

[1, 2, 4, 5, 10, 20, 109, 139, 191, 218, 278, 382, 436, 545, 556, 695, 764, 955, 1090, 1390, 1910, 2180, 2780, 3820, 15151, 20819, 26549, 30302, 41638, 53098, 60604, 75755, 83276, 104095, 106196, 132745, 151510, 208190, 265490, 303020, 416380, 530980, 2893841, 5787682, 11575364, 14469205, 28938410, 57876820]

約数ペア:

[(1, 57876820), (2, 28938410), (4, 14469205), (5, 11575364), (10, 5787682), (20, 2893841), (109, 530980), (139, 416380), (191, 303020), (218, 265490), (278, 208190), (382, 151510), (436, 132745), (545, 106196), (556, 104095), (695, 83276), (764, 75755), (955, 60604), (1090, 53098), (1390, 41638), (1910, 30302), (2180, 26549), (2780, 20819), (3820, 15151)]