257111200

素因数分解:

$2^5\times 5^2\times {\mathrm{557}}^1\times {\mathrm{577}}^1$

素因数の和:1154

約数の個数: 72

約数和(自身を含む): 629889372

約数和(自身を除く): 372778172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 557, 577, 800, 1114, 1154, 2228, 2308, 2785, 2885, 4456, 4616, 5570, 5770, 8912, 9232, 11140, 11540, 13925, 14425, 17824, 18464, 22280, 23080, 27850, 28850, 44560, 46160, 55700, 57700, 89120, 92320, 111400, 115400, 222800, 230800, 321389, 445600, 461600, 642778, 1285556, 1606945, 2571112, 3213890, 5142224, 6427780, 8034725, 10284448, 12855560, 16069450, 25711120, 32138900, 51422240, 64277800, 128555600, 257111200]

約数ペア:

[(1, 257111200), (2, 128555600), (4, 64277800), (5, 51422240), (8, 32138900), (10, 25711120), (16, 16069450), (20, 12855560), (25, 10284448), (32, 8034725), (40, 6427780), (50, 5142224), (80, 3213890), (100, 2571112), (160, 1606945), (200, 1285556), (400, 642778), (557, 461600), (577, 445600), (800, 321389), (1114, 230800), (1154, 222800), (2228, 115400), (2308, 111400), (2785, 92320), (2885, 89120), (4456, 57700), (4616, 55700), (5570, 46160), (5770, 44560), (8912, 28850), (9232, 27850), (11140, 23080), (11540, 22280), (13925, 18464), (14425, 17824)]