90908720

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{3313}}^1$

素因数の和:3347

約数の個数: 80

約数和(自身を含む): 246561600

約数和(自身を除く): 155652880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1372, 1715, 1960, 2744, 3313, 3430, 3920, 5488, 6626, 6860, 13252, 13720, 16565, 23191, 26504, 27440, 33130, 46382, 53008, 66260, 92764, 115955, 132520, 162337, 185528, 231910, 265040, 324674, 371056, 463820, 649348, 811685, 927640, 1136359, 1298696, 1623370, 1855280, 2272718, 2597392, 3246740, 4545436, 5681795, 6493480, 9090872, 11363590, 12986960, 18181744, 22727180, 45454360, 90908720]

約数ペア:

[(1, 90908720), (2, 45454360), (4, 22727180), (5, 18181744), (7, 12986960), (8, 11363590), (10, 9090872), (14, 6493480), (16, 5681795), (20, 4545436), (28, 3246740), (35, 2597392), (40, 2272718), (49, 1855280), (56, 1623370), (70, 1298696), (80, 1136359), (98, 927640), (112, 811685), (140, 649348), (196, 463820), (245, 371056), (280, 324674), (343, 265040), (392, 231910), (490, 185528), (560, 162337), (686, 132520), (784, 115955), (980, 92764), (1372, 66260), (1715, 53008), (1960, 46382), (2744, 33130), (3313, 27440), (3430, 26504), (3920, 23191), (5488, 16565), (6626, 13720), (6860, 13252)]