211854760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{5581}}^1$

素因数の和:5678

約数の個数: 64

約数和(自身を含む): 520465680

約数和(自身を除く): 308610920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 520, 584, 730, 949, 1460, 1898, 2920, 3796, 4745, 5581, 7592, 9490, 11162, 18980, 22324, 27905, 37960, 44648, 55810, 72553, 111620, 145106, 223240, 290212, 362765, 407413, 580424, 725530, 814826, 1451060, 1629652, 2037065, 2902120, 3259304, 4074130, 5296369, 8148260, 10592738, 16296520, 21185476, 26481845, 42370952, 52963690, 105927380, 211854760]

約数ペア:

[(1, 211854760), (2, 105927380), (4, 52963690), (5, 42370952), (8, 26481845), (10, 21185476), (13, 16296520), (20, 10592738), (26, 8148260), (40, 5296369), (52, 4074130), (65, 3259304), (73, 2902120), (104, 2037065), (130, 1629652), (146, 1451060), (260, 814826), (292, 725530), (365, 580424), (520, 407413), (584, 362765), (730, 290212), (949, 223240), (1460, 145106), (1898, 111620), (2920, 72553), (3796, 55810), (4745, 44648), (5581, 37960), (7592, 27905), (9490, 22324), (11162, 18980)]