279260480

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1997}}^1$

素因数の和:2056

約数の個数: 112

約数和(自身を含む): 730788480

約数和(自身を除く): 451528000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 64, 76, 80, 92, 95, 115, 152, 160, 184, 190, 230, 304, 320, 368, 380, 437, 460, 608, 736, 760, 874, 920, 1216, 1472, 1520, 1748, 1840, 1997, 2185, 3040, 3496, 3680, 3994, 4370, 6080, 6992, 7360, 7988, 8740, 9985, 13984, 15976, 17480, 19970, 27968, 31952, 34960, 37943, 39940, 45931, 63904, 69920, 75886, 79880, 91862, 127808, 139840, 151772, 159760, 183724, 189715, 229655, 303544, 319520, 367448, 379430, 459310, 607088, 639040, 734896, 758860, 872689, 918620, 1214176, 1469792, 1517720, 1745378, 1837240, 2428352, 2939584, 3035440, 3490756, 3674480, 4363445, 6070880, 6981512, 7348960, 8726890, 12141760, 13963024, 14697920, 17453780, 27926048, 34907560, 55852096, 69815120, 139630240, 279260480]

約数ペア:

[(1, 279260480), (2, 139630240), (4, 69815120), (5, 55852096), (8, 34907560), (10, 27926048), (16, 17453780), (19, 14697920), (20, 13963024), (23, 12141760), (32, 8726890), (38, 7348960), (40, 6981512), (46, 6070880), (64, 4363445), (76, 3674480), (80, 3490756), (92, 3035440), (95, 2939584), (115, 2428352), (152, 1837240), (160, 1745378), (184, 1517720), (190, 1469792), (230, 1214176), (304, 918620), (320, 872689), (368, 758860), (380, 734896), (437, 639040), (460, 607088), (608, 459310), (736, 379430), (760, 367448), (874, 319520), (920, 303544), (1216, 229655), (1472, 189715), (1520, 183724), (1748, 159760), (1840, 151772), (1997, 139840), (2185, 127808), (3040, 91862), (3496, 79880), (3680, 75886), (3994, 69920), (4370, 63904), (6080, 45931), (6992, 39940), (7360, 37943), (7988, 34960), (8740, 31952), (9985, 27968), (13984, 19970), (15976, 17480)]