20751747968

素因数分解:

$2^7\times 7^1\times {\mathrm{233}}^1\times {\mathrm{99401}}^1$

素因数の和:99655

約数の個数: 64

約数和(自身を含む): 47450538720

約数和(自身を除く): 26698790752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 233, 448, 466, 896, 932, 1631, 1864, 3262, 3728, 6524, 7456, 13048, 14912, 26096, 29824, 52192, 99401, 104384, 198802, 208768, 397604, 695807, 795208, 1391614, 1590416, 2783228, 3180832, 5566456, 6361664, 11132912, 12723328, 22265824, 23160433, 44531648, 46320866, 89063296, 92641732, 162123031, 185283464, 324246062, 370566928, 648492124, 741133856, 1296984248, 1482267712, 2593968496, 2964535424, 5187936992, 10375873984, 20751747968]

約数ペア:

[(1, 20751747968), (2, 10375873984), (4, 5187936992), (7, 2964535424), (8, 2593968496), (14, 1482267712), (16, 1296984248), (28, 741133856), (32, 648492124), (56, 370566928), (64, 324246062), (112, 185283464), (128, 162123031), (224, 92641732), (233, 89063296), (448, 46320866), (466, 44531648), (896, 23160433), (932, 22265824), (1631, 12723328), (1864, 11132912), (3262, 6361664), (3728, 5566456), (6524, 3180832), (7456, 2783228), (13048, 1590416), (14912, 1391614), (26096, 795208), (29824, 695807), (52192, 397604), (99401, 208768), (104384, 198802)]