20809614970

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{509}}^1\times {\mathrm{140977}}^1$

素因数の和:141522

約数の個数: 32

約数和(自身を含む): 38825341200

約数和(自身を除く): 18015726230

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 509, 1018, 2545, 5090, 14761, 29522, 73805, 140977, 147610, 281954, 704885, 1409770, 4088333, 8176666, 20441665, 40883330, 71757293, 143514586, 358786465, 717572930, 2080961497, 4161922994, 10404807485, 20809614970]

約数ペア:

[(1, 20809614970), (2, 10404807485), (5, 4161922994), (10, 2080961497), (29, 717572930), (58, 358786465), (145, 143514586), (290, 71757293), (509, 40883330), (1018, 20441665), (2545, 8176666), (5090, 4088333), (14761, 1409770), (29522, 704885), (73805, 281954), (140977, 147610)]