20259400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:551

約数の個数: 96

約数和(自身を含む): 55800000

約数和(自身を除く): 35540600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 29, 35, 40, 50, 56, 58, 70, 100, 116, 140, 145, 175, 200, 203, 232, 280, 290, 350, 406, 499, 580, 700, 725, 812, 998, 1015, 1160, 1400, 1450, 1624, 1996, 2030, 2495, 2900, 3493, 3992, 4060, 4990, 5075, 5800, 6986, 8120, 9980, 10150, 12475, 13972, 14471, 17465, 19960, 20300, 24950, 27944, 28942, 34930, 40600, 49900, 57884, 69860, 72355, 87325, 99800, 101297, 115768, 139720, 144710, 174650, 202594, 289420, 349300, 361775, 405188, 506485, 578840, 698600, 723550, 810376, 1012970, 1447100, 2025940, 2532425, 2894200, 4051880, 5064850, 10129700, 20259400]

約数ペア:

[(1, 20259400), (2, 10129700), (4, 5064850), (5, 4051880), (7, 2894200), (8, 2532425), (10, 2025940), (14, 1447100), (20, 1012970), (25, 810376), (28, 723550), (29, 698600), (35, 578840), (40, 506485), (50, 405188), (56, 361775), (58, 349300), (70, 289420), (100, 202594), (116, 174650), (140, 144710), (145, 139720), (175, 115768), (200, 101297), (203, 99800), (232, 87325), (280, 72355), (290, 69860), (350, 57884), (406, 49900), (499, 40600), (580, 34930), (700, 28942), (725, 27944), (812, 24950), (998, 20300), (1015, 19960), (1160, 17465), (1400, 14471), (1450, 13972), (1624, 12475), (1996, 10150), (2030, 9980), (2495, 8120), (2900, 6986), (3493, 5800), (3992, 5075), (4060, 4990)]