28386800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:187

約数の個数: 120

約数和(自身を含む): 75557664

約数和(自身を除く): 47170864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 53, 65, 80, 100, 103, 104, 106, 130, 200, 206, 208, 212, 260, 265, 325, 400, 412, 424, 515, 520, 530, 650, 689, 824, 848, 1030, 1040, 1060, 1300, 1325, 1339, 1378, 1648, 2060, 2120, 2575, 2600, 2650, 2678, 2756, 3445, 4120, 4240, 5150, 5200, 5300, 5356, 5459, 5512, 6695, 6890, 8240, 10300, 10600, 10712, 10918, 11024, 13390, 13780, 17225, 20600, 21200, 21424, 21836, 26780, 27295, 27560, 33475, 34450, 41200, 43672, 53560, 54590, 55120, 66950, 68900, 70967, 87344, 107120, 109180, 133900, 136475, 137800, 141934, 218360, 267800, 272950, 275600, 283868, 354835, 436720, 535600, 545900, 567736, 709670, 1091800, 1135472, 1419340, 1774175, 2183600, 2838680, 3548350, 5677360, 7096700, 14193400, 28386800]

約数ペア:

[(1, 28386800), (2, 14193400), (4, 7096700), (5, 5677360), (8, 3548350), (10, 2838680), (13, 2183600), (16, 1774175), (20, 1419340), (25, 1135472), (26, 1091800), (40, 709670), (50, 567736), (52, 545900), (53, 535600), (65, 436720), (80, 354835), (100, 283868), (103, 275600), (104, 272950), (106, 267800), (130, 218360), (200, 141934), (206, 137800), (208, 136475), (212, 133900), (260, 109180), (265, 107120), (325, 87344), (400, 70967), (412, 68900), (424, 66950), (515, 55120), (520, 54590), (530, 53560), (650, 43672), (689, 41200), (824, 34450), (848, 33475), (1030, 27560), (1040, 27295), (1060, 26780), (1300, 21836), (1325, 21424), (1339, 21200), (1378, 20600), (1648, 17225), (2060, 13780), (2120, 13390), (2575, 11024), (2600, 10918), (2650, 10712), (2678, 10600), (2756, 10300), (3445, 8240), (4120, 6890), (4240, 6695), (5150, 5512), (5200, 5459), (5300, 5356)]