178986430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{3989}}^1$

素因数の和:4644

約数の個数: 32

約数和(自身を含む): 368867520

約数和(自身を除く): 189881090

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 641, 1282, 3205, 3989, 4487, 6410, 7978, 8974, 19945, 22435, 27923, 39890, 44870, 55846, 139615, 279230, 2556949, 5113898, 12784745, 17898643, 25569490, 35797286, 89493215, 178986430]

約数ペア:

[(1, 178986430), (2, 89493215), (5, 35797286), (7, 25569490), (10, 17898643), (14, 12784745), (35, 5113898), (70, 2556949), (641, 279230), (1282, 139615), (3205, 55846), (3989, 44870), (4487, 39890), (6410, 27923), (7978, 22435), (8974, 19945)]