257564216

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{353797}}^1$

素因数の和:353823

約数の個数: 32

約数和(自身を含む): 594380640

約数和(自身を除く): 336816424

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 353797, 707594, 1415188, 2476579, 2830376, 4599361, 4953158, 9198722, 9906316, 18397444, 19812632, 32195527, 36794888, 64391054, 128782108, 257564216]

約数ペア:

[(1, 257564216), (2, 128782108), (4, 64391054), (7, 36794888), (8, 32195527), (13, 19812632), (14, 18397444), (26, 9906316), (28, 9198722), (52, 4953158), (56, 4599361), (91, 2830376), (104, 2476579), (182, 1415188), (364, 707594), (728, 353797)]