647942708

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{409}}^1\times {\mathrm{1951}}^1$

素因数の和:2400

約数の個数: 48

約数和(自身を含む): 1344537600

約数和(自身を除く): 696594892

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 409, 812, 818, 1636, 1951, 2863, 3902, 5726, 7804, 11452, 11861, 13657, 23722, 27314, 47444, 54628, 56579, 83027, 113158, 166054, 226316, 332108, 396053, 792106, 797959, 1584212, 1595918, 3191836, 5585713, 11171426, 22342852, 23140811, 46281622, 92563244, 161985677, 323971354, 647942708]

約数ペア:

[(1, 647942708), (2, 323971354), (4, 161985677), (7, 92563244), (14, 46281622), (28, 23140811), (29, 22342852), (58, 11171426), (116, 5585713), (203, 3191836), (406, 1595918), (409, 1584212), (812, 797959), (818, 792106), (1636, 396053), (1951, 332108), (2863, 226316), (3902, 166054), (5726, 113158), (7804, 83027), (11452, 56579), (11861, 54628), (13657, 47444), (23722, 27314)]