257646764

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{199417}}^1$

素因数の和:199457

約数の個数: 24

約数和(自身を含む): 502533360

約数和(自身を除く): 244886596

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 199417, 398834, 797668, 3390089, 3788923, 6780178, 7577846, 13560356, 15155692, 64411691, 128823382, 257646764]

約数ペア:

[(1, 257646764), (2, 128823382), (4, 64411691), (17, 15155692), (19, 13560356), (34, 7577846), (38, 6780178), (68, 3788923), (76, 3390089), (323, 797668), (646, 398834), (1292, 199417)]