278439148

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{9091}}^1$

素因数の和:9158

約数の個数: 48

約数和(自身を含む): 570250240

約数和(自身を除く): 291811092

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 806, 988, 1178, 1612, 2356, 7657, 9091, 15314, 18182, 30628, 36364, 118183, 172729, 236366, 281821, 345458, 472732, 563642, 690916, 1127284, 2245477, 3663673, 4490954, 5354599, 7327346, 8981908, 10709198, 14654692, 21418396, 69609787, 139219574, 278439148]

約数ペア:

[(1, 278439148), (2, 139219574), (4, 69609787), (13, 21418396), (19, 14654692), (26, 10709198), (31, 8981908), (38, 7327346), (52, 5354599), (62, 4490954), (76, 3663673), (124, 2245477), (247, 1127284), (403, 690916), (494, 563642), (589, 472732), (806, 345458), (988, 281821), (1178, 236366), (1612, 172729), (2356, 118183), (7657, 36364), (9091, 30628), (15314, 18182)]