72401720

素因数分解:

$2^3\times 5^1\times {\mathrm{1810043}}^1$

素因数の和:1810054

約数の個数: 16

約数和(自身を含む): 162903960

約数和(自身を除く): 90502240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1810043, 3620086, 7240172, 9050215, 14480344, 18100430, 36200860, 72401720]

約数ペア:

[(1, 72401720), (2, 36200860), (4, 18100430), (5, 14480344), (8, 9050215), (10, 7240172), (20, 3620086), (40, 1810043)]