19843240

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1151}}^1$

素因数の和:1593

約数の個数: 32

約数和(自身を含む): 44789760

約数和(自身を除く): 24946520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1151, 1724, 2155, 2302, 3448, 4310, 4604, 5755, 8620, 9208, 11510, 17240, 23020, 46040, 496081, 992162, 1984324, 2480405, 3968648, 4960810, 9921620, 19843240]

約数ペア:

[(1, 19843240), (2, 9921620), (4, 4960810), (5, 3968648), (8, 2480405), (10, 1984324), (20, 992162), (40, 496081), (431, 46040), (862, 23020), (1151, 17240), (1724, 11510), (2155, 9208), (2302, 8620), (3448, 5755), (4310, 4604)]