2013172880

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{433}}^1\times {\mathrm{653}}^1$

素因数の和:1188

約数の個数: 80

約数和(自身を含む): 4751414640

約数和(自身を除く): 2738241760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 433, 445, 653, 712, 866, 890, 1306, 1424, 1732, 1780, 2165, 2612, 3265, 3464, 3560, 4330, 5224, 6530, 6928, 7120, 8660, 10448, 13060, 17320, 26120, 34640, 38537, 52240, 58117, 77074, 116234, 154148, 192685, 232468, 282749, 290585, 308296, 385370, 464936, 565498, 581170, 616592, 770740, 929872, 1130996, 1162340, 1413745, 1541480, 2261992, 2324680, 2827490, 3082960, 4523984, 4649360, 5654980, 11309960, 22619920, 25164661, 50329322, 100658644, 125823305, 201317288, 251646610, 402634576, 503293220, 1006586440, 2013172880]

約数ペア:

[(1, 2013172880), (2, 1006586440), (4, 503293220), (5, 402634576), (8, 251646610), (10, 201317288), (16, 125823305), (20, 100658644), (40, 50329322), (80, 25164661), (89, 22619920), (178, 11309960), (356, 5654980), (433, 4649360), (445, 4523984), (653, 3082960), (712, 2827490), (866, 2324680), (890, 2261992), (1306, 1541480), (1424, 1413745), (1732, 1162340), (1780, 1130996), (2165, 929872), (2612, 770740), (3265, 616592), (3464, 581170), (3560, 565498), (4330, 464936), (5224, 385370), (6530, 308296), (6928, 290585), (7120, 282749), (8660, 232468), (10448, 192685), (13060, 154148), (17320, 116234), (26120, 77074), (34640, 58117), (38537, 52240)]