257747672

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{727}}^1$

素因数の和:1240

約数の個数: 64

約数和(自身を含む): 596843520

約数和(自身を除く): 339095848

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 487, 727, 728, 974, 1454, 1948, 2908, 3409, 3896, 5089, 5816, 6331, 6818, 9451, 10178, 12662, 13636, 18902, 20356, 25324, 27272, 37804, 40712, 44317, 50648, 66157, 75608, 88634, 132314, 177268, 264628, 354049, 354536, 529256, 708098, 1416196, 2478343, 2832392, 4602637, 4956686, 9205274, 9913372, 18410548, 19826744, 32218459, 36821096, 64436918, 128873836, 257747672]

約数ペア:

[(1, 257747672), (2, 128873836), (4, 64436918), (7, 36821096), (8, 32218459), (13, 19826744), (14, 18410548), (26, 9913372), (28, 9205274), (52, 4956686), (56, 4602637), (91, 2832392), (104, 2478343), (182, 1416196), (364, 708098), (487, 529256), (727, 354536), (728, 354049), (974, 264628), (1454, 177268), (1948, 132314), (2908, 88634), (3409, 75608), (3896, 66157), (5089, 50648), (5816, 44317), (6331, 40712), (6818, 37804), (9451, 27272), (10178, 25324), (12662, 20356), (13636, 18902)]