18470840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1181}}^1$

素因数の和:1232

約数の個数: 64

約数和(自身を含む): 45956160

約数和(自身を除く): 27485320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 115, 136, 170, 184, 230, 340, 391, 460, 680, 782, 920, 1181, 1564, 1955, 2362, 3128, 3910, 4724, 5905, 7820, 9448, 11810, 15640, 20077, 23620, 27163, 40154, 47240, 54326, 80308, 100385, 108652, 135815, 160616, 200770, 217304, 271630, 401540, 461771, 543260, 803080, 923542, 1086520, 1847084, 2308855, 3694168, 4617710, 9235420, 18470840]

約数ペア:

[(1, 18470840), (2, 9235420), (4, 4617710), (5, 3694168), (8, 2308855), (10, 1847084), (17, 1086520), (20, 923542), (23, 803080), (34, 543260), (40, 461771), (46, 401540), (68, 271630), (85, 217304), (92, 200770), (115, 160616), (136, 135815), (170, 108652), (184, 100385), (230, 80308), (340, 54326), (391, 47240), (460, 40154), (680, 27163), (782, 23620), (920, 20077), (1181, 15640), (1564, 11810), (1955, 9448), (2362, 7820), (3128, 5905), (3910, 4724)]