204030140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1\times {\mathrm{491}}^1$

素因数の和:842

約数の個数: 48

約数和(自身を含む): 436423680

約数和(自身を除く): 232393540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 263, 316, 395, 491, 526, 790, 982, 1052, 1315, 1580, 1964, 2455, 2630, 4910, 5260, 9820, 20777, 38789, 41554, 77578, 83108, 103885, 129133, 155156, 193945, 207770, 258266, 387890, 415540, 516532, 645665, 775780, 1291330, 2582660, 10201507, 20403014, 40806028, 51007535, 102015070, 204030140]

約数ペア:

[(1, 204030140), (2, 102015070), (4, 51007535), (5, 40806028), (10, 20403014), (20, 10201507), (79, 2582660), (158, 1291330), (263, 775780), (316, 645665), (395, 516532), (491, 415540), (526, 387890), (790, 258266), (982, 207770), (1052, 193945), (1315, 155156), (1580, 129133), (1964, 103885), (2455, 83108), (2630, 77578), (4910, 41554), (5260, 38789), (9820, 20777)]