256906052

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 514985688

約数和(自身を除く): 258079636

約数列:

[1, 2, 4, 13, 26, 31, 52, 53, 62, 97, 106, 124, 194, 212, 388, 403, 689, 806, 961, 1261, 1378, 1612, 1643, 1922, 2522, 2756, 3007, 3286, 3844, 5044, 5141, 6014, 6572, 10282, 12028, 12493, 20564, 21359, 24986, 39091, 42718, 49972, 50933, 66833, 78182, 85436, 93217, 101866, 133666, 156364, 159371, 186434, 203732, 267332, 318742, 372868, 637484, 662129, 1211821, 1324258, 2071823, 2423642, 2648516, 4143646, 4847284, 4940501, 8287292, 9881002, 19762004, 64226513, 128453026, 256906052]

約数ペア:

[(1, 256906052), (2, 128453026), (4, 64226513), (13, 19762004), (26, 9881002), (31, 8287292), (52, 4940501), (53, 4847284), (62, 4143646), (97, 2648516), (106, 2423642), (124, 2071823), (194, 1324258), (212, 1211821), (388, 662129), (403, 637484), (689, 372868), (806, 318742), (961, 267332), (1261, 203732), (1378, 186434), (1612, 159371), (1643, 156364), (1922, 133666), (2522, 101866), (2756, 93217), (3007, 85436), (3286, 78182), (3844, 66833), (5044, 50933), (5141, 49972), (6014, 42718), (6572, 39091), (10282, 24986), (12028, 21359), (12493, 20564)]