90648760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1223}}^1$

素因数の和:1360

約数の個数: 64

約数和(自身を含む): 218116800

約数和(自身を除く): 127468040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 109, 136, 170, 218, 340, 436, 545, 680, 872, 1090, 1223, 1853, 2180, 2446, 3706, 4360, 4892, 6115, 7412, 9265, 9784, 12230, 14824, 18530, 20791, 24460, 37060, 41582, 48920, 74120, 83164, 103955, 133307, 166328, 207910, 266614, 415820, 533228, 666535, 831640, 1066456, 1333070, 2266219, 2666140, 4532438, 5332280, 9064876, 11331095, 18129752, 22662190, 45324380, 90648760]

約数ペア:

[(1, 90648760), (2, 45324380), (4, 22662190), (5, 18129752), (8, 11331095), (10, 9064876), (17, 5332280), (20, 4532438), (34, 2666140), (40, 2266219), (68, 1333070), (85, 1066456), (109, 831640), (136, 666535), (170, 533228), (218, 415820), (340, 266614), (436, 207910), (545, 166328), (680, 133307), (872, 103955), (1090, 83164), (1223, 74120), (1853, 48920), (2180, 41582), (2446, 37060), (3706, 24460), (4360, 20791), (4892, 18530), (6115, 14824), (7412, 12230), (9265, 9784)]