19752920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44893}}^1$

素因数の和:44915

約数の個数: 32

約数和(自身を含む): 48485520

約数和(自身を除く): 28732600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44893, 89786, 179572, 224465, 359144, 448930, 493823, 897860, 987646, 1795720, 1975292, 2469115, 3950584, 4938230, 9876460, 19752920]

約数ペア:

[(1, 19752920), (2, 9876460), (4, 4938230), (5, 3950584), (8, 2469115), (10, 1975292), (11, 1795720), (20, 987646), (22, 897860), (40, 493823), (44, 448930), (55, 359144), (88, 224465), (110, 179572), (220, 89786), (440, 44893)]