879492020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{25463}}^1$

素因数の和:25640

約数の個数: 48

約数和(自身を含む): 2027749248

約数和(自身を除く): 1148257228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 314, 628, 785, 1570, 1727, 3140, 3454, 6908, 8635, 17270, 25463, 34540, 50926, 101852, 127315, 254630, 280093, 509260, 560186, 1120372, 1400465, 2800930, 3997691, 5601860, 7995382, 15990764, 19988455, 39976910, 43974601, 79953820, 87949202, 175898404, 219873005, 439746010, 879492020]

約数ペア:

[(1, 879492020), (2, 439746010), (4, 219873005), (5, 175898404), (10, 87949202), (11, 79953820), (20, 43974601), (22, 39976910), (44, 19988455), (55, 15990764), (110, 7995382), (157, 5601860), (220, 3997691), (314, 2800930), (628, 1400465), (785, 1120372), (1570, 560186), (1727, 509260), (3140, 280093), (3454, 254630), (6908, 127315), (8635, 101852), (17270, 50926), (25463, 34540)]