26858420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 58060800

約数和(自身を除く): 31202380

約数列:

[1, 2, 4, 5, 10, 20, 79, 89, 158, 178, 191, 316, 356, 382, 395, 445, 764, 790, 890, 955, 1580, 1780, 1910, 3820, 7031, 14062, 15089, 16999, 28124, 30178, 33998, 35155, 60356, 67996, 70310, 75445, 84995, 140620, 150890, 169990, 301780, 339980, 1342921, 2685842, 5371684, 6714605, 13429210, 26858420]

約数ペア:

[(1, 26858420), (2, 13429210), (4, 6714605), (5, 5371684), (10, 2685842), (20, 1342921), (79, 339980), (89, 301780), (158, 169990), (178, 150890), (191, 140620), (316, 84995), (356, 75445), (382, 70310), (395, 67996), (445, 60356), (764, 35155), (790, 33998), (890, 30178), (955, 28124), (1580, 16999), (1780, 15089), (1910, 14062), (3820, 7031)]