251140784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{5471}}^1$

素因数の和:5649

約数の個数: 40

約数和(自身を含む): 515681280

約数和(自身を除く): 264540496

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 151, 152, 302, 304, 604, 1208, 2416, 2869, 5471, 5738, 10942, 11476, 21884, 22952, 43768, 45904, 87536, 103949, 207898, 415796, 826121, 831592, 1652242, 1663184, 3304484, 6608968, 13217936, 15696299, 31392598, 62785196, 125570392, 251140784]

約数ペア:

[(1, 251140784), (2, 125570392), (4, 62785196), (8, 31392598), (16, 15696299), (19, 13217936), (38, 6608968), (76, 3304484), (151, 1663184), (152, 1652242), (302, 831592), (304, 826121), (604, 415796), (1208, 207898), (2416, 103949), (2869, 87536), (5471, 45904), (5738, 43768), (10942, 22952), (11476, 21884)]