281567990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{5939}}^1$

素因数の和:6388

約数の個数: 32

約数和(自身を含む): 554273280

約数和(自身を除く): 272705290

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 431, 862, 2155, 4310, 4741, 5939, 9482, 11878, 23705, 29695, 47410, 59390, 65329, 130658, 326645, 653290, 2559709, 5119418, 12798545, 25597090, 28156799, 56313598, 140783995, 281567990]

約数ペア:

[(1, 281567990), (2, 140783995), (5, 56313598), (10, 28156799), (11, 25597090), (22, 12798545), (55, 5119418), (110, 2559709), (431, 653290), (862, 326645), (2155, 130658), (4310, 65329), (4741, 59390), (5939, 47410), (9482, 29695), (11878, 23705)]