20252778

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{757}}^1$

素因数の和:796

約数の個数: 64

約数和(自身を含む): 50937600

約数和(自身を除く): 30684822

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 182, 273, 294, 343, 546, 637, 686, 757, 1029, 1274, 1514, 1911, 2058, 2271, 3822, 4459, 4542, 5299, 8918, 9841, 10598, 13377, 15897, 19682, 26754, 29523, 31794, 37093, 59046, 68887, 74186, 111279, 137774, 206661, 222558, 259651, 413322, 482209, 519302, 778953, 964418, 1446627, 1557906, 2893254, 3375463, 6750926, 10126389, 20252778]

約数ペア:

[(1, 20252778), (2, 10126389), (3, 6750926), (6, 3375463), (7, 2893254), (13, 1557906), (14, 1446627), (21, 964418), (26, 778953), (39, 519302), (42, 482209), (49, 413322), (78, 259651), (91, 222558), (98, 206661), (147, 137774), (182, 111279), (273, 74186), (294, 68887), (343, 59046), (546, 37093), (637, 31794), (686, 29523), (757, 26754), (1029, 19682), (1274, 15897), (1514, 13377), (1911, 10598), (2058, 9841), (2271, 8918), (3822, 5299), (4459, 4542)]