399426144

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{320053}}^1$

素因数の和:320079

約数の個数: 48

約数和(自身を含む): 1129150512

約数和(自身を除く): 729724368

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 320053, 640106, 960159, 1280212, 1920318, 2560424, 3840636, 4160689, 5120848, 7681272, 8321378, 10241696, 12482067, 15362544, 16642756, 24964134, 30725088, 33285512, 49928268, 66571024, 99856536, 133142048, 199713072, 399426144]

約数ペア:

[(1, 399426144), (2, 199713072), (3, 133142048), (4, 99856536), (6, 66571024), (8, 49928268), (12, 33285512), (13, 30725088), (16, 24964134), (24, 16642756), (26, 15362544), (32, 12482067), (39, 10241696), (48, 8321378), (52, 7681272), (78, 5120848), (96, 4160689), (104, 3840636), (156, 2560424), (208, 1920318), (312, 1280212), (416, 960159), (624, 640106), (1248, 320053)]