20123123780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2633}}^1\times {\mathrm{13177}}^1$

素因数の和:15848

約数の個数: 48

約数和(自身を含む): 43735673520

約数和(自身を除く): 23612549740

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 2633, 5266, 10532, 13165, 13177, 26330, 26354, 52660, 52708, 65885, 76357, 131770, 152714, 263540, 305428, 381785, 382133, 763570, 764266, 1527140, 1528532, 1910665, 3821330, 7642660, 34695041, 69390082, 138780164, 173475205, 346950410, 693900820, 1006156189, 2012312378, 4024624756, 5030780945, 10061561890, 20123123780]

約数ペア:

[(1, 20123123780), (2, 10061561890), (4, 5030780945), (5, 4024624756), (10, 2012312378), (20, 1006156189), (29, 693900820), (58, 346950410), (116, 173475205), (145, 138780164), (290, 69390082), (580, 34695041), (2633, 7642660), (5266, 3821330), (10532, 1910665), (13165, 1528532), (13177, 1527140), (26330, 764266), (26354, 763570), (52660, 382133), (52708, 381785), (65885, 305428), (76357, 263540), (131770, 152714)]