19140880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21751}}^1$

素因数の和:21775

約数の個数: 40

約数和(自身を含む): 48550464

約数和(自身を除く): 29409584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21751, 43502, 87004, 108755, 174008, 217510, 239261, 348016, 435020, 478522, 870040, 957044, 1196305, 1740080, 1914088, 2392610, 3828176, 4785220, 9570440, 19140880]

約数ペア:

[(1, 19140880), (2, 9570440), (4, 4785220), (5, 3828176), (8, 2392610), (10, 1914088), (11, 1740080), (16, 1196305), (20, 957044), (22, 870040), (40, 478522), (44, 435020), (55, 348016), (80, 239261), (88, 217510), (110, 174008), (176, 108755), (220, 87004), (440, 43502), (880, 21751)]