17284780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 37721376

約数和(自身を除く): 20436596

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 107, 164, 197, 205, 214, 394, 410, 428, 535, 788, 820, 985, 1070, 1970, 2140, 3940, 4387, 8077, 8774, 16154, 17548, 21079, 21935, 32308, 40385, 42158, 43870, 80770, 84316, 87740, 105395, 161540, 210790, 421580, 864239, 1728478, 3456956, 4321195, 8642390, 17284780]

約数ペア:

[(1, 17284780), (2, 8642390), (4, 4321195), (5, 3456956), (10, 1728478), (20, 864239), (41, 421580), (82, 210790), (107, 161540), (164, 105395), (197, 87740), (205, 84316), (214, 80770), (394, 43870), (410, 42158), (428, 40385), (535, 32308), (788, 21935), (820, 21079), (985, 17548), (1070, 16154), (1970, 8774), (2140, 8077), (3940, 4387)]