16820580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1381}}^1$

素因数の和:1429

約数の個数: 96

約数和(自身を含む): 55722240

約数和(自身を除く): 38901660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1381, 1740, 2030, 2436, 2762, 3045, 4060, 4143, 5524, 6090, 6905, 8286, 9667, 12180, 13810, 16572, 19334, 20715, 27620, 29001, 38668, 40049, 41430, 48335, 58002, 80098, 82860, 96670, 116004, 120147, 145005, 160196, 193340, 200245, 240294, 280343, 290010, 400490, 480588, 560686, 580020, 600735, 800980, 841029, 1121372, 1201470, 1401715, 1682058, 2402940, 2803430, 3364116, 4205145, 5606860, 8410290, 16820580]

約数ペア:

[(1, 16820580), (2, 8410290), (3, 5606860), (4, 4205145), (5, 3364116), (6, 2803430), (7, 2402940), (10, 1682058), (12, 1401715), (14, 1201470), (15, 1121372), (20, 841029), (21, 800980), (28, 600735), (29, 580020), (30, 560686), (35, 480588), (42, 400490), (58, 290010), (60, 280343), (70, 240294), (84, 200245), (87, 193340), (105, 160196), (116, 145005), (140, 120147), (145, 116004), (174, 96670), (203, 82860), (210, 80098), (290, 58002), (348, 48335), (406, 41430), (420, 40049), (435, 38668), (580, 29001), (609, 27620), (812, 20715), (870, 19334), (1015, 16572), (1218, 13810), (1381, 12180), (1740, 9667), (2030, 8286), (2436, 6905), (2762, 6090), (3045, 5524), (4060, 4143)]