1815696970

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1\times {\mathrm{9109}}^1$

素因数の和:9790

約数の個数: 32

約数和(自身を含む): 3379299840

約数和(自身を除く): 1563602870

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 643, 1286, 3215, 6430, 9109, 18218, 19933, 39866, 45545, 91090, 99665, 199330, 282379, 564758, 1411895, 2823790, 5857087, 11714174, 29285435, 58570870, 181569697, 363139394, 907848485, 1815696970]

約数ペア:

[(1, 1815696970), (2, 907848485), (5, 363139394), (10, 181569697), (31, 58570870), (62, 29285435), (155, 11714174), (310, 5857087), (643, 2823790), (1286, 1411895), (3215, 564758), (6430, 282379), (9109, 199330), (18218, 99665), (19933, 91090), (39866, 45545)]