20123711985

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{787}}^1\times {\mathrm{131129}}^1$

素因数の和:131937

約数の個数: 32

約数和(自身を含む): 34719027840

約数和(自身を除く): 14595315855

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 787, 2361, 3935, 10231, 11805, 30693, 51155, 131129, 153465, 393387, 655645, 1704677, 1966935, 5114031, 8523385, 25570155, 103198523, 309595569, 515992615, 1341580799, 1547977845, 4024742397, 6707903995, 20123711985]

約数ペア:

[(1, 20123711985), (3, 6707903995), (5, 4024742397), (13, 1547977845), (15, 1341580799), (39, 515992615), (65, 309595569), (195, 103198523), (787, 25570155), (2361, 8523385), (3935, 5114031), (10231, 1966935), (11805, 1704677), (30693, 655645), (51155, 393387), (131129, 153465)]