20262808

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{191}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 18617192

約数列:

[1, 2, 4, 8, 89, 149, 178, 191, 298, 356, 382, 596, 712, 764, 1192, 1528, 13261, 16999, 26522, 28459, 33998, 53044, 56918, 67996, 106088, 113836, 135992, 227672, 2532851, 5065702, 10131404, 20262808]

約数ペア:

[(1, 20262808), (2, 10131404), (4, 5065702), (8, 2532851), (89, 227672), (149, 135992), (178, 113836), (191, 106088), (298, 67996), (356, 56918), (382, 53044), (596, 33998), (712, 28459), (764, 26522), (1192, 16999), (1528, 13261)]