51780820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1237}}^1$

素因数の和:1289

約数の個数: 96

約数和(自身を含む): 139765248

約数和(自身を除く): 87984428

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 91, 92, 115, 130, 140, 161, 182, 230, 260, 299, 322, 364, 455, 460, 598, 644, 805, 910, 1196, 1237, 1495, 1610, 1820, 2093, 2474, 2990, 3220, 4186, 4948, 5980, 6185, 8372, 8659, 10465, 12370, 16081, 17318, 20930, 24740, 28451, 32162, 34636, 41860, 43295, 56902, 64324, 80405, 86590, 112567, 113804, 142255, 160810, 173180, 199157, 225134, 284510, 321620, 369863, 398314, 450268, 562835, 569020, 739726, 796628, 995785, 1125670, 1479452, 1849315, 1991570, 2251340, 2589041, 3698630, 3983140, 5178082, 7397260, 10356164, 12945205, 25890410, 51780820]

約数ペア:

[(1, 51780820), (2, 25890410), (4, 12945205), (5, 10356164), (7, 7397260), (10, 5178082), (13, 3983140), (14, 3698630), (20, 2589041), (23, 2251340), (26, 1991570), (28, 1849315), (35, 1479452), (46, 1125670), (52, 995785), (65, 796628), (70, 739726), (91, 569020), (92, 562835), (115, 450268), (130, 398314), (140, 369863), (161, 321620), (182, 284510), (230, 225134), (260, 199157), (299, 173180), (322, 160810), (364, 142255), (455, 113804), (460, 112567), (598, 86590), (644, 80405), (805, 64324), (910, 56902), (1196, 43295), (1237, 41860), (1495, 34636), (1610, 32162), (1820, 28451), (2093, 24740), (2474, 20930), (2990, 17318), (3220, 16081), (4186, 12370), (4948, 10465), (5980, 8659), (6185, 8372)]