398678741240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{3852713}}^1$

素因数の和:3852936

約数の個数: 64

約数和(自身を含む): 970883928000

約数和(自身を除く): 572205186760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 199, 260, 398, 520, 796, 995, 1592, 1990, 2587, 3980, 5174, 7960, 10348, 12935, 20696, 25870, 51740, 103480, 3852713, 7705426, 15410852, 19263565, 30821704, 38527130, 50085269, 77054260, 100170538, 154108520, 200341076, 250426345, 400682152, 500852690, 766689887, 1001705380, 1533379774, 2003410760, 3066759548, 3833449435, 6133519096, 7666898870, 9966968531, 15333797740, 19933937062, 30667595480, 39867874124, 49834842655, 79735748248, 99669685310, 199339370620, 398678741240]

約数ペア:

[(1, 398678741240), (2, 199339370620), (4, 99669685310), (5, 79735748248), (8, 49834842655), (10, 39867874124), (13, 30667595480), (20, 19933937062), (26, 15333797740), (40, 9966968531), (52, 7666898870), (65, 6133519096), (104, 3833449435), (130, 3066759548), (199, 2003410760), (260, 1533379774), (398, 1001705380), (520, 766689887), (796, 500852690), (995, 400682152), (1592, 250426345), (1990, 200341076), (2587, 154108520), (3980, 100170538), (5174, 77054260), (7960, 50085269), (10348, 38527130), (12935, 30821704), (20696, 19263565), (25870, 15410852), (51740, 7705426), (103480, 3852713)]