257112870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{1224347}}^1$

素因数の和:1224364

約数の個数: 32

約数和(自身を含む): 705224448

約数和(自身を除く): 448111578

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 1224347, 2448694, 3673041, 6121735, 7346082, 8570429, 12243470, 17140858, 18365205, 25711287, 36730410, 42852145, 51422574, 85704290, 128556435, 257112870]

約数ペア:

[(1, 257112870), (2, 128556435), (3, 85704290), (5, 51422574), (6, 42852145), (7, 36730410), (10, 25711287), (14, 18365205), (15, 17140858), (21, 12243470), (30, 8570429), (35, 7346082), (42, 6121735), (70, 3673041), (105, 2448694), (210, 1224347)]