19891760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35521}}^1$

素因数の和:35541

約数の個数: 40

約数和(自身を含む): 52856736

約数和(自身を除く): 32964976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35521, 71042, 142084, 177605, 248647, 284168, 355210, 497294, 568336, 710420, 994588, 1243235, 1420840, 1989176, 2486470, 2841680, 3978352, 4972940, 9945880, 19891760]

約数ペア:

[(1, 19891760), (2, 9945880), (4, 4972940), (5, 3978352), (7, 2841680), (8, 2486470), (10, 1989176), (14, 1420840), (16, 1243235), (20, 994588), (28, 710420), (35, 568336), (40, 497294), (56, 355210), (70, 284168), (80, 248647), (112, 177605), (140, 142084), (280, 71042), (560, 35521)]