7928440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 19555200

約数和(自身を除く): 11626760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 79, 104, 130, 158, 193, 260, 316, 386, 395, 520, 632, 772, 790, 965, 1027, 1544, 1580, 1930, 2054, 2509, 3160, 3860, 4108, 5018, 5135, 7720, 8216, 10036, 10270, 12545, 15247, 20072, 20540, 25090, 30494, 41080, 50180, 60988, 76235, 100360, 121976, 152470, 198211, 304940, 396422, 609880, 792844, 991055, 1585688, 1982110, 3964220, 7928440]

約数ペア:

[(1, 7928440), (2, 3964220), (4, 1982110), (5, 1585688), (8, 991055), (10, 792844), (13, 609880), (20, 396422), (26, 304940), (40, 198211), (52, 152470), (65, 121976), (79, 100360), (104, 76235), (130, 60988), (158, 50180), (193, 41080), (260, 30494), (316, 25090), (386, 20540), (395, 20072), (520, 15247), (632, 12545), (772, 10270), (790, 10036), (965, 8216), (1027, 7720), (1544, 5135), (1580, 5018), (1930, 4108), (2054, 3860), (2509, 3160)]