51895890

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{811}}^1$

素因数の和:909

約数の個数: 80

約数和(自身を含む): 141482880

約数和(自身を除く): 89586990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 79, 81, 90, 135, 158, 162, 237, 270, 395, 405, 474, 711, 790, 810, 811, 1185, 1422, 1622, 2133, 2370, 2433, 3555, 4055, 4266, 4866, 6399, 7110, 7299, 8110, 10665, 12165, 12798, 14598, 21330, 21897, 24330, 31995, 36495, 43794, 63990, 64069, 65691, 72990, 109485, 128138, 131382, 192207, 218970, 320345, 328455, 384414, 576621, 640690, 656910, 961035, 1153242, 1729863, 1922070, 2883105, 3459726, 5189589, 5766210, 8649315, 10379178, 17298630, 25947945, 51895890]

約数ペア:

[(1, 51895890), (2, 25947945), (3, 17298630), (5, 10379178), (6, 8649315), (9, 5766210), (10, 5189589), (15, 3459726), (18, 2883105), (27, 1922070), (30, 1729863), (45, 1153242), (54, 961035), (79, 656910), (81, 640690), (90, 576621), (135, 384414), (158, 328455), (162, 320345), (237, 218970), (270, 192207), (395, 131382), (405, 128138), (474, 109485), (711, 72990), (790, 65691), (810, 64069), (811, 63990), (1185, 43794), (1422, 36495), (1622, 31995), (2133, 24330), (2370, 21897), (2433, 21330), (3555, 14598), (4055, 12798), (4266, 12165), (4866, 10665), (6399, 8110), (7110, 7299)]