128564740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1\times {\mathrm{587}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 277385472

約数和(自身を除く): 148820732

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 233, 235, 466, 470, 587, 932, 940, 1165, 1174, 2330, 2348, 2935, 4660, 5870, 10951, 11740, 21902, 27589, 43804, 54755, 55178, 109510, 110356, 136771, 137945, 219020, 273542, 275890, 547084, 551780, 683855, 1367710, 2735420, 6428237, 12856474, 25712948, 32141185, 64282370, 128564740]

約数ペア:

[(1, 128564740), (2, 64282370), (4, 32141185), (5, 25712948), (10, 12856474), (20, 6428237), (47, 2735420), (94, 1367710), (188, 683855), (233, 551780), (235, 547084), (466, 275890), (470, 273542), (587, 219020), (932, 137945), (940, 136771), (1165, 110356), (1174, 109510), (2330, 55178), (2348, 54755), (2935, 43804), (4660, 27589), (5870, 21902), (10951, 11740)]