20167695

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{643}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 37975392

約数和(自身を除く): 17807697

約数列:

[1, 3, 5, 9, 15, 17, 41, 45, 51, 85, 123, 153, 205, 255, 369, 615, 643, 697, 765, 1845, 1929, 2091, 3215, 3485, 5787, 6273, 9645, 10455, 10931, 26363, 28935, 31365, 32793, 54655, 79089, 98379, 131815, 163965, 237267, 395445, 448171, 491895, 1186335, 1344513, 2240855, 4033539, 6722565, 20167695]

約数ペア:

[(1, 20167695), (3, 6722565), (5, 4033539), (9, 2240855), (15, 1344513), (17, 1186335), (41, 491895), (45, 448171), (51, 395445), (85, 237267), (123, 163965), (153, 131815), (205, 98379), (255, 79089), (369, 54655), (615, 32793), (643, 31365), (697, 28935), (765, 26363), (1845, 10931), (1929, 10455), (2091, 9645), (3215, 6273), (3485, 5787)]