19950920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45343}}^1$

素因数の和:45365

約数の個数: 32

約数和(自身を含む): 48971520

約数和(自身を除く): 29020600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45343, 90686, 181372, 226715, 362744, 453430, 498773, 906860, 997546, 1813720, 1995092, 2493865, 3990184, 4987730, 9975460, 19950920]

約数ペア:

[(1, 19950920), (2, 9975460), (4, 4987730), (5, 3990184), (8, 2493865), (10, 1995092), (11, 1813720), (20, 997546), (22, 906860), (40, 498773), (44, 453430), (55, 362744), (88, 226715), (110, 181372), (220, 90686), (440, 45343)]