30981290

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{50789}}^1$

素因数の和:50857

約数の個数: 16

約数和(自身を含む): 56681640

約数和(自身を除く): 25700350

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 50789, 101578, 253945, 507890, 3098129, 6196258, 15490645, 30981290]

約数ペア:

[(1, 30981290), (2, 15490645), (5, 6196258), (10, 3098129), (61, 507890), (122, 253945), (305, 101578), (610, 50789)]