19705120

素因数分解:

$2^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1151}}^1$

素因数の和:1273

約数の個数: 48

約数和(自身を含む): 47029248

約数和(自身を除く): 27324128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 107, 160, 214, 428, 535, 856, 1070, 1151, 1712, 2140, 2302, 3424, 4280, 4604, 5755, 8560, 9208, 11510, 17120, 18416, 23020, 36832, 46040, 92080, 123157, 184160, 246314, 492628, 615785, 985256, 1231570, 1970512, 2463140, 3941024, 4926280, 9852560, 19705120]

約数ペア:

[(1, 19705120), (2, 9852560), (4, 4926280), (5, 3941024), (8, 2463140), (10, 1970512), (16, 1231570), (20, 985256), (32, 615785), (40, 492628), (80, 246314), (107, 184160), (160, 123157), (214, 92080), (428, 46040), (535, 36832), (856, 23020), (1070, 18416), (1151, 17120), (1712, 11510), (2140, 9208), (2302, 8560), (3424, 5755), (4280, 4604)]