280137739

素因数分解:

$7^1\times {\mathrm{109}}^1\times {\mathrm{571}}^1\times {\mathrm{643}}^1$

素因数の和:1330

約数の個数: 16

約数和(自身を含む): 324163840

約数和(自身を除く): 44026101

約数列:

[1, 7, 109, 571, 643, 763, 3997, 4501, 62239, 70087, 367153, 435673, 490609, 2570071, 40019677, 280137739]

約数ペア:

[(1, 280137739), (7, 40019677), (109, 2570071), (571, 490609), (643, 435673), (763, 367153), (3997, 70087), (4501, 62239)]