19927160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45289}}^1$

素因数の和:45311

約数の個数: 32

約数和(自身を含む): 48913200

約数和(自身を除く): 28986040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45289, 90578, 181156, 226445, 362312, 452890, 498179, 905780, 996358, 1811560, 1992716, 2490895, 3985432, 4981790, 9963580, 19927160]

約数ペア:

[(1, 19927160), (2, 9963580), (4, 4981790), (5, 3985432), (8, 2490895), (10, 1992716), (11, 1811560), (20, 996358), (22, 905780), (40, 498179), (44, 452890), (55, 362312), (88, 226445), (110, 181156), (220, 90578), (440, 45289)]