891512120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{587}}^1\times {\mathrm{883}}^1$

素因数の和:1524

約数の個数: 64

約数和(自身を含む): 2058376320

約数和(自身を除く): 1166864200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 587, 860, 883, 1174, 1720, 1766, 2348, 2935, 3532, 4415, 4696, 5870, 7064, 8830, 11740, 17660, 23480, 25241, 35320, 37969, 50482, 75938, 100964, 126205, 151876, 189845, 201928, 252410, 303752, 379690, 504820, 518321, 759380, 1009640, 1036642, 1518760, 2073284, 2591605, 4146568, 5183210, 10366420, 20732840, 22287803, 44575606, 89151212, 111439015, 178302424, 222878030, 445756060, 891512120]

約数ペア:

[(1, 891512120), (2, 445756060), (4, 222878030), (5, 178302424), (8, 111439015), (10, 89151212), (20, 44575606), (40, 22287803), (43, 20732840), (86, 10366420), (172, 5183210), (215, 4146568), (344, 2591605), (430, 2073284), (587, 1518760), (860, 1036642), (883, 1009640), (1174, 759380), (1720, 518321), (1766, 504820), (2348, 379690), (2935, 303752), (3532, 252410), (4415, 201928), (4696, 189845), (5870, 151876), (7064, 126205), (8830, 100964), (11740, 75938), (17660, 50482), (23480, 37969), (25241, 35320)]