18580300

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:235

約数の個数: 72

約数和(自身を含む): 42966000

約数和(自身を除く): 24385700

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 43, 50, 58, 86, 100, 116, 145, 149, 172, 215, 290, 298, 430, 580, 596, 725, 745, 860, 1075, 1247, 1450, 1490, 2150, 2494, 2900, 2980, 3725, 4300, 4321, 4988, 6235, 6407, 7450, 8642, 12470, 12814, 14900, 17284, 21605, 24940, 25628, 31175, 32035, 43210, 62350, 64070, 86420, 108025, 124700, 128140, 160175, 185803, 216050, 320350, 371606, 432100, 640700, 743212, 929015, 1858030, 3716060, 4645075, 9290150, 18580300]

約数ペア:

[(1, 18580300), (2, 9290150), (4, 4645075), (5, 3716060), (10, 1858030), (20, 929015), (25, 743212), (29, 640700), (43, 432100), (50, 371606), (58, 320350), (86, 216050), (100, 185803), (116, 160175), (145, 128140), (149, 124700), (172, 108025), (215, 86420), (290, 64070), (298, 62350), (430, 43210), (580, 32035), (596, 31175), (725, 25628), (745, 24940), (860, 21605), (1075, 17284), (1247, 14900), (1450, 12814), (1490, 12470), (2150, 8642), (2494, 7450), (2900, 6407), (2980, 6235), (3725, 4988), (4300, 4321)]