20901430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1367}}^1$

素因数の和:1524

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 20466890

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 139, 278, 695, 1367, 1390, 1529, 2734, 3058, 6835, 7645, 13670, 15037, 15290, 30074, 75185, 150370, 190013, 380026, 950065, 1900130, 2090143, 4180286, 10450715, 20901430]

約数ペア:

[(1, 20901430), (2, 10450715), (5, 4180286), (10, 2090143), (11, 1900130), (22, 950065), (55, 380026), (110, 190013), (139, 150370), (278, 75185), (695, 30074), (1367, 15290), (1390, 15037), (1529, 13670), (2734, 7645), (3058, 6835)]