178984728

素因数分解:

$2^3\times 3^4\times {\mathrm{13}}^1\times {\mathrm{21247}}^1$

素因数の和:21278

約数の個数: 80

約数和(自身を含む): 539911680

約数和(自身を除く): 360926952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 104, 108, 117, 156, 162, 216, 234, 312, 324, 351, 468, 648, 702, 936, 1053, 1404, 2106, 2808, 4212, 8424, 21247, 42494, 63741, 84988, 127482, 169976, 191223, 254964, 276211, 382446, 509928, 552422, 573669, 764892, 828633, 1104844, 1147338, 1529784, 1657266, 1721007, 2209688, 2294676, 2485899, 3314532, 3442014, 4589352, 4971798, 6629064, 6884028, 7457697, 9943596, 13768056, 14915394, 19887192, 22373091, 29830788, 44746182, 59661576, 89492364, 178984728]

約数ペア:

[(1, 178984728), (2, 89492364), (3, 59661576), (4, 44746182), (6, 29830788), (8, 22373091), (9, 19887192), (12, 14915394), (13, 13768056), (18, 9943596), (24, 7457697), (26, 6884028), (27, 6629064), (36, 4971798), (39, 4589352), (52, 3442014), (54, 3314532), (72, 2485899), (78, 2294676), (81, 2209688), (104, 1721007), (108, 1657266), (117, 1529784), (156, 1147338), (162, 1104844), (216, 828633), (234, 764892), (312, 573669), (324, 552422), (351, 509928), (468, 382446), (648, 276211), (702, 254964), (936, 191223), (1053, 169976), (1404, 127482), (2106, 84988), (2808, 63741), (4212, 42494), (8424, 21247)]