664758736

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{381169}}^1$

素因数の和:381286

約数の個数: 20

約数和(自身を含む): 1299789700

約数和(自身を除く): 635030964

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 381169, 762338, 1524676, 3049352, 6098704, 41547421, 83094842, 166189684, 332379368, 664758736]

約数ペア:

[(1, 664758736), (2, 332379368), (4, 166189684), (8, 83094842), (16, 41547421), (109, 6098704), (218, 3049352), (436, 1524676), (872, 762338), (1744, 381169)]