78400008

素因数分解:

$2^3\times 3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:448

約数の個数: 128

約数和(自身を含む): 233164800

約数和(自身を除く): 154764792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 27, 36, 43, 46, 54, 69, 72, 86, 92, 108, 129, 138, 172, 184, 207, 216, 258, 276, 344, 367, 387, 414, 516, 552, 621, 734, 774, 828, 989, 1032, 1101, 1161, 1242, 1468, 1548, 1656, 1978, 2202, 2322, 2484, 2936, 2967, 3096, 3303, 3956, 4404, 4644, 4968, 5934, 6606, 7912, 8441, 8808, 8901, 9288, 9909, 11868, 13212, 15781, 16882, 17802, 19818, 23736, 25323, 26424, 26703, 31562, 33764, 35604, 39636, 47343, 50646, 53406, 63124, 67528, 71208, 75969, 79272, 94686, 101292, 106812, 126248, 142029, 151938, 189372, 202584, 213624, 227907, 284058, 303876, 362963, 378744, 426087, 455814, 568116, 607752, 725926, 852174, 911628, 1088889, 1136232, 1451852, 1704348, 1823256, 2177778, 2903704, 3266667, 3408696, 4355556, 6533334, 8711112, 9800001, 13066668, 19600002, 26133336, 39200004, 78400008]

約数ペア:

[(1, 78400008), (2, 39200004), (3, 26133336), (4, 19600002), (6, 13066668), (8, 9800001), (9, 8711112), (12, 6533334), (18, 4355556), (23, 3408696), (24, 3266667), (27, 2903704), (36, 2177778), (43, 1823256), (46, 1704348), (54, 1451852), (69, 1136232), (72, 1088889), (86, 911628), (92, 852174), (108, 725926), (129, 607752), (138, 568116), (172, 455814), (184, 426087), (207, 378744), (216, 362963), (258, 303876), (276, 284058), (344, 227907), (367, 213624), (387, 202584), (414, 189372), (516, 151938), (552, 142029), (621, 126248), (734, 106812), (774, 101292), (828, 94686), (989, 79272), (1032, 75969), (1101, 71208), (1161, 67528), (1242, 63124), (1468, 53406), (1548, 50646), (1656, 47343), (1978, 39636), (2202, 35604), (2322, 33764), (2484, 31562), (2936, 26703), (2967, 26424), (3096, 25323), (3303, 23736), (3956, 19818), (4404, 17802), (4644, 16882), (4968, 15781), (5934, 13212), (6606, 11868), (7912, 9909), (8441, 9288), (8808, 8901)]