138995140

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{64951}}^1$

素因数の和:65067

約数の個数: 24

約数和(自身を含む): 294622272

約数和(自身を除く): 155627132

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 64951, 129902, 259804, 324755, 649510, 1299020, 6949757, 13899514, 27799028, 34748785, 69497570, 138995140]

約数ペア:

[(1, 138995140), (2, 69497570), (4, 34748785), (5, 27799028), (10, 13899514), (20, 6949757), (107, 1299020), (214, 649510), (428, 324755), (535, 259804), (1070, 129902), (2140, 64951)]