20152505984

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{111109}}^1$

素因数の和:111245

約数の個数: 64

約数和(自身を含む): 43632897000

約数和(自身を除く): 23480391016

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 109, 128, 208, 218, 416, 436, 832, 872, 1417, 1664, 1744, 2834, 3488, 5668, 6976, 11336, 13952, 22672, 45344, 90688, 111109, 181376, 222218, 444436, 888872, 1444417, 1777744, 2888834, 3555488, 5777668, 7110976, 11555336, 12110881, 14221952, 23110672, 24221762, 46221344, 48443524, 92442688, 96887048, 157441453, 184885376, 193774096, 314882906, 387548192, 629765812, 775096384, 1259531624, 1550192768, 2519063248, 5038126496, 10076252992, 20152505984]

約数ペア:

[(1, 20152505984), (2, 10076252992), (4, 5038126496), (8, 2519063248), (13, 1550192768), (16, 1259531624), (26, 775096384), (32, 629765812), (52, 387548192), (64, 314882906), (104, 193774096), (109, 184885376), (128, 157441453), (208, 96887048), (218, 92442688), (416, 48443524), (436, 46221344), (832, 24221762), (872, 23110672), (1417, 14221952), (1664, 12110881), (1744, 11555336), (2834, 7110976), (3488, 5777668), (5668, 3555488), (6976, 2888834), (11336, 1777744), (13952, 1444417), (22672, 888872), (45344, 444436), (90688, 222218), (111109, 181376)]