157780040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{358591}}^1$

素因数の和:358613

約数の個数: 32

約数和(自身を含む): 387279360

約数和(自身を除く): 229499320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 358591, 717182, 1434364, 1792955, 2868728, 3585910, 3944501, 7171820, 7889002, 14343640, 15778004, 19722505, 31556008, 39445010, 78890020, 157780040]

約数ペア:

[(1, 157780040), (2, 78890020), (4, 39445010), (5, 31556008), (8, 19722505), (10, 15778004), (11, 14343640), (20, 7889002), (22, 7171820), (40, 3944501), (44, 3585910), (55, 2868728), (88, 1792955), (110, 1434364), (220, 717182), (440, 358591)]