252557720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{119131}}^1$

素因数の和:119195

約数の個数: 32

約数和(自身を含む): 578981520

約数和(自身を除く): 326423800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 119131, 238262, 476524, 595655, 953048, 1191310, 2382620, 4765240, 6313943, 12627886, 25255772, 31569715, 50511544, 63139430, 126278860, 252557720]

約数ペア:

[(1, 252557720), (2, 126278860), (4, 63139430), (5, 50511544), (8, 31569715), (10, 25255772), (20, 12627886), (40, 6313943), (53, 4765240), (106, 2382620), (212, 1191310), (265, 953048), (424, 595655), (530, 476524), (1060, 238262), (2120, 119131)]