13521640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 33696000

約数和(自身を除く): 20174360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 389, 395, 440, 632, 778, 790, 869, 1556, 1580, 1738, 1945, 3112, 3160, 3476, 3890, 4279, 4345, 6952, 7780, 8558, 8690, 15560, 17116, 17380, 21395, 30731, 34232, 34760, 42790, 61462, 85580, 122924, 153655, 171160, 245848, 307310, 338041, 614620, 676082, 1229240, 1352164, 1690205, 2704328, 3380410, 6760820, 13521640]

約数ペア:

[(1, 13521640), (2, 6760820), (4, 3380410), (5, 2704328), (8, 1690205), (10, 1352164), (11, 1229240), (20, 676082), (22, 614620), (40, 338041), (44, 307310), (55, 245848), (79, 171160), (88, 153655), (110, 122924), (158, 85580), (220, 61462), (316, 42790), (389, 34760), (395, 34232), (440, 30731), (632, 21395), (778, 17380), (790, 17116), (869, 15560), (1556, 8690), (1580, 8558), (1738, 7780), (1945, 6952), (3112, 4345), (3160, 4279), (3476, 3890)]