257655034

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:420

約数の個数: 72

約数和(自身を含む): 498685248

約数和(自身を除く): 241030214

約数列:

[1, 2, 7, 13, 14, 26, 47, 49, 91, 94, 98, 169, 182, 329, 331, 338, 611, 637, 658, 662, 1183, 1222, 1274, 2303, 2317, 2366, 4277, 4303, 4606, 4634, 7943, 8281, 8554, 8606, 15557, 15886, 16219, 16562, 29939, 30121, 31114, 32438, 55601, 55939, 59878, 60242, 108899, 111202, 111878, 202241, 210847, 217798, 389207, 391573, 404482, 421694, 762293, 778414, 783146, 1415687, 1524586, 2629133, 2741011, 2831374, 5258266, 5482022, 9909809, 18403931, 19819618, 36807862, 128827517, 257655034]

約数ペア:

[(1, 257655034), (2, 128827517), (7, 36807862), (13, 19819618), (14, 18403931), (26, 9909809), (47, 5482022), (49, 5258266), (91, 2831374), (94, 2741011), (98, 2629133), (169, 1524586), (182, 1415687), (329, 783146), (331, 778414), (338, 762293), (611, 421694), (637, 404482), (658, 391573), (662, 389207), (1183, 217798), (1222, 210847), (1274, 202241), (2303, 111878), (2317, 111202), (2366, 108899), (4277, 60242), (4303, 59878), (4606, 55939), (4634, 55601), (7943, 32438), (8281, 31114), (8554, 30121), (8606, 29939), (15557, 16562), (15886, 16219)]