645155488

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{24677}}^1$

素因数の和:24749

約数の個数: 48

約数和(自身を含む): 1368148320

約数和(自身を除く): 722992832

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 76, 86, 152, 172, 304, 344, 608, 688, 817, 1376, 1634, 3268, 6536, 13072, 24677, 26144, 49354, 98708, 197416, 394832, 468863, 789664, 937726, 1061111, 1875452, 2122222, 3750904, 4244444, 7501808, 8488888, 15003616, 16977776, 20161109, 33955552, 40322218, 80644436, 161288872, 322577744, 645155488]

約数ペア:

[(1, 645155488), (2, 322577744), (4, 161288872), (8, 80644436), (16, 40322218), (19, 33955552), (32, 20161109), (38, 16977776), (43, 15003616), (76, 8488888), (86, 7501808), (152, 4244444), (172, 3750904), (304, 2122222), (344, 1875452), (608, 1061111), (688, 937726), (817, 789664), (1376, 468863), (1634, 394832), (3268, 197416), (6536, 98708), (13072, 49354), (24677, 26144)]