47257220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 101606400

約数和(自身を除く): 54349180

約数列:

[1, 2, 4, 5, 10, 20, 89, 139, 178, 191, 278, 356, 382, 445, 556, 695, 764, 890, 955, 1390, 1780, 1910, 2780, 3820, 12371, 16999, 24742, 26549, 33998, 49484, 53098, 61855, 67996, 84995, 106196, 123710, 132745, 169990, 247420, 265490, 339980, 530980, 2362861, 4725722, 9451444, 11814305, 23628610, 47257220]

約数ペア:

[(1, 47257220), (2, 23628610), (4, 11814305), (5, 9451444), (10, 4725722), (20, 2362861), (89, 530980), (139, 339980), (178, 265490), (191, 247420), (278, 169990), (356, 132745), (382, 123710), (445, 106196), (556, 84995), (695, 67996), (764, 61855), (890, 53098), (955, 49484), (1390, 33998), (1780, 26549), (1910, 24742), (2780, 16999), (3820, 12371)]