1285223456

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{15277}}^1$

素因数の和:15537

約数の個数: 48

約数和(自身を含む): 2772040320

約数和(自身を除く): 1486816864

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 239, 352, 478, 956, 1912, 2629, 3824, 5258, 7648, 10516, 15277, 21032, 30554, 42064, 61108, 84128, 122216, 168047, 244432, 336094, 488864, 672188, 1344376, 2688752, 3651203, 5377504, 7302406, 14604812, 29209624, 40163233, 58419248, 80326466, 116838496, 160652932, 321305864, 642611728, 1285223456]

約数ペア:

[(1, 1285223456), (2, 642611728), (4, 321305864), (8, 160652932), (11, 116838496), (16, 80326466), (22, 58419248), (32, 40163233), (44, 29209624), (88, 14604812), (176, 7302406), (239, 5377504), (352, 3651203), (478, 2688752), (956, 1344376), (1912, 672188), (2629, 488864), (3824, 336094), (5258, 244432), (7648, 168047), (10516, 122216), (15277, 84128), (21032, 61108), (30554, 42064)]