28700980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18637}}^1$

素因数の和:18664

約数の個数: 48

約数和(自身を含む): 75148416

約数和(自身を除く): 46447436

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18637, 37274, 74548, 93185, 130459, 186370, 205007, 260918, 372740, 410014, 521836, 652295, 820028, 1025035, 1304590, 1435049, 2050070, 2609180, 2870098, 4100140, 5740196, 7175245, 14350490, 28700980]

約数ペア:

[(1, 28700980), (2, 14350490), (4, 7175245), (5, 5740196), (7, 4100140), (10, 2870098), (11, 2609180), (14, 2050070), (20, 1435049), (22, 1304590), (28, 1025035), (35, 820028), (44, 652295), (55, 521836), (70, 410014), (77, 372740), (110, 260918), (140, 205007), (154, 186370), (220, 130459), (308, 93185), (385, 74548), (770, 37274), (1540, 18637)]