211077940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1\times {\mathrm{521}}^1$

素因数の和:1008

約数の個数: 48

約数和(自身を含む): 454616064

約数和(自身を除く): 243538124

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 431, 470, 521, 862, 940, 1042, 1724, 2084, 2155, 2605, 4310, 5210, 8620, 10420, 20257, 24487, 40514, 48974, 81028, 97948, 101285, 122435, 202570, 224551, 244870, 405140, 449102, 489740, 898204, 1122755, 2245510, 4491020, 10553897, 21107794, 42215588, 52769485, 105538970, 211077940]

約数ペア:

[(1, 211077940), (2, 105538970), (4, 52769485), (5, 42215588), (10, 21107794), (20, 10553897), (47, 4491020), (94, 2245510), (188, 1122755), (235, 898204), (431, 489740), (470, 449102), (521, 405140), (862, 244870), (940, 224551), (1042, 202570), (1724, 122435), (2084, 101285), (2155, 97948), (2605, 81028), (4310, 48974), (5210, 40514), (8620, 24487), (10420, 20257)]