398678800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1783}}^1$

素因数の和:1857

約数の個数: 120

約数和(自身を含む): 1056085184

約数和(自身を除く): 657406384

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 43, 50, 52, 65, 80, 86, 100, 104, 130, 172, 200, 208, 215, 260, 325, 344, 400, 430, 520, 559, 650, 688, 860, 1040, 1075, 1118, 1300, 1720, 1783, 2150, 2236, 2600, 2795, 3440, 3566, 4300, 4472, 5200, 5590, 7132, 8600, 8915, 8944, 11180, 13975, 14264, 17200, 17830, 22360, 23179, 27950, 28528, 35660, 44575, 44720, 46358, 55900, 71320, 76669, 89150, 92716, 111800, 115895, 142640, 153338, 178300, 185432, 223600, 231790, 306676, 356600, 370864, 383345, 463580, 579475, 613352, 713200, 766690, 927160, 996697, 1158950, 1226704, 1533380, 1854320, 1916725, 1993394, 2317900, 3066760, 3833450, 3986788, 4635800, 4983485, 6133520, 7666900, 7973576, 9271600, 9966970, 15333800, 15947152, 19933940, 24917425, 30667600, 39867880, 49834850, 79735760, 99669700, 199339400, 398678800]

約数ペア:

[(1, 398678800), (2, 199339400), (4, 99669700), (5, 79735760), (8, 49834850), (10, 39867880), (13, 30667600), (16, 24917425), (20, 19933940), (25, 15947152), (26, 15333800), (40, 9966970), (43, 9271600), (50, 7973576), (52, 7666900), (65, 6133520), (80, 4983485), (86, 4635800), (100, 3986788), (104, 3833450), (130, 3066760), (172, 2317900), (200, 1993394), (208, 1916725), (215, 1854320), (260, 1533380), (325, 1226704), (344, 1158950), (400, 996697), (430, 927160), (520, 766690), (559, 713200), (650, 613352), (688, 579475), (860, 463580), (1040, 383345), (1075, 370864), (1118, 356600), (1300, 306676), (1720, 231790), (1783, 223600), (2150, 185432), (2236, 178300), (2600, 153338), (2795, 142640), (3440, 115895), (3566, 111800), (4300, 92716), (4472, 89150), (5200, 76669), (5590, 71320), (7132, 55900), (8600, 46358), (8915, 44720), (8944, 44575), (11180, 35660), (13975, 28528), (14264, 27950), (17200, 23179), (17830, 22360)]