18580000

素因数分解:

$2^5\times 5^4\times {\mathrm{929}}^1$

素因数の和:959

約数の個数: 60

約数和(自身を含む): 45758790

約数和(自身を除く): 27178790

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 929, 1000, 1250, 1858, 2000, 2500, 3716, 4000, 4645, 5000, 7432, 9290, 10000, 14864, 18580, 20000, 23225, 29728, 37160, 46450, 74320, 92900, 116125, 148640, 185800, 232250, 371600, 464500, 580625, 743200, 929000, 1161250, 1858000, 2322500, 3716000, 4645000, 9290000, 18580000]

約数ペア:

[(1, 18580000), (2, 9290000), (4, 4645000), (5, 3716000), (8, 2322500), (10, 1858000), (16, 1161250), (20, 929000), (25, 743200), (32, 580625), (40, 464500), (50, 371600), (80, 232250), (100, 185800), (125, 148640), (160, 116125), (200, 92900), (250, 74320), (400, 46450), (500, 37160), (625, 29728), (800, 23225), (929, 20000), (1000, 18580), (1250, 14864), (1858, 10000), (2000, 9290), (2500, 7432), (3716, 5000), (4000, 4645)]