17520143780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{108457}}^1$

素因数の和:108704

約数の個数: 48

約数和(自身を含む): 37881342576

約数和(自身を除く): 20361198796

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 197, 205, 394, 410, 788, 820, 985, 1970, 3940, 8077, 16154, 32308, 40385, 80770, 108457, 161540, 216914, 433828, 542285, 1084570, 2169140, 4446737, 8893474, 17786948, 21366029, 22233685, 42732058, 44467370, 85464116, 88934740, 106830145, 213660290, 427320580, 876007189, 1752014378, 3504028756, 4380035945, 8760071890, 17520143780]

約数ペア:

[(1, 17520143780), (2, 8760071890), (4, 4380035945), (5, 3504028756), (10, 1752014378), (20, 876007189), (41, 427320580), (82, 213660290), (164, 106830145), (197, 88934740), (205, 85464116), (394, 44467370), (410, 42732058), (788, 22233685), (820, 21366029), (985, 17786948), (1970, 8893474), (3940, 4446737), (8077, 2169140), (16154, 1084570), (32308, 542285), (40385, 433828), (80770, 216914), (108457, 161540)]