21804080260

素因数分解:

$2^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{977}}^1\times {\mathrm{3943}}^1$

素因数の和:5212

約数の個数: 48

約数和(自身を含む): 46009063296

約数和(自身を除く): 24204983036

約数列:

[1, 2, 4, 5, 10, 20, 283, 566, 977, 1132, 1415, 1954, 2830, 3908, 3943, 4885, 5660, 7886, 9770, 15772, 19540, 19715, 39430, 78860, 276491, 552982, 1105964, 1115869, 1382455, 2231738, 2764910, 3852311, 4463476, 5529820, 5579345, 7704622, 11158690, 15409244, 19261555, 22317380, 38523110, 77046220, 1090204013, 2180408026, 4360816052, 5451020065, 10902040130, 21804080260]

約数ペア:

[(1, 21804080260), (2, 10902040130), (4, 5451020065), (5, 4360816052), (10, 2180408026), (20, 1090204013), (283, 77046220), (566, 38523110), (977, 22317380), (1132, 19261555), (1415, 15409244), (1954, 11158690), (2830, 7704622), (3908, 5579345), (3943, 5529820), (4885, 4463476), (5660, 3852311), (7886, 2764910), (9770, 2231738), (15772, 1382455), (19540, 1115869), (19715, 1105964), (39430, 552982), (78860, 276491)]