20593990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1019}}^1$

素因数の和:1116

約数の個数: 32

約数和(自身を含む): 38776320

約数和(自身を除く): 18182330

約数列:

[1, 2, 5, 10, 43, 47, 86, 94, 215, 235, 430, 470, 1019, 2021, 2038, 4042, 5095, 10105, 10190, 20210, 43817, 47893, 87634, 95786, 219085, 239465, 438170, 478930, 2059399, 4118798, 10296995, 20593990]

約数ペア:

[(1, 20593990), (2, 10296995), (5, 4118798), (10, 2059399), (43, 478930), (47, 438170), (86, 239465), (94, 219085), (215, 95786), (235, 87634), (430, 47893), (470, 43817), (1019, 20210), (2021, 10190), (2038, 10105), (4042, 5095)]