122052820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{359}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 261273600

約数和(自身を除く): 139220780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 191, 356, 359, 382, 445, 718, 764, 890, 955, 1436, 1780, 1795, 1910, 3590, 3820, 7180, 16999, 31951, 33998, 63902, 67996, 68569, 84995, 127804, 137138, 159755, 169990, 274276, 319510, 339980, 342845, 639020, 685690, 1371380, 6102641, 12205282, 24410564, 30513205, 61026410, 122052820]

約数ペア:

[(1, 122052820), (2, 61026410), (4, 30513205), (5, 24410564), (10, 12205282), (20, 6102641), (89, 1371380), (178, 685690), (191, 639020), (356, 342845), (359, 339980), (382, 319510), (445, 274276), (718, 169990), (764, 159755), (890, 137138), (955, 127804), (1436, 84995), (1780, 68569), (1795, 67996), (1910, 63902), (3590, 33998), (3820, 31951), (7180, 16999)]