65326720

素因数分解:

$2^7\times 5^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1113

約数の個数: 64

約数和(自身を含む): 157847040

約数和(自身を除く): 92520320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 320, 412, 515, 640, 824, 991, 1030, 1648, 1982, 2060, 3296, 3964, 4120, 4955, 6592, 7928, 8240, 9910, 13184, 15856, 16480, 19820, 31712, 32960, 39640, 63424, 65920, 79280, 102073, 126848, 158560, 204146, 317120, 408292, 510365, 634240, 816584, 1020730, 1633168, 2041460, 3266336, 4082920, 6532672, 8165840, 13065344, 16331680, 32663360, 65326720]

約数ペア:

[(1, 65326720), (2, 32663360), (4, 16331680), (5, 13065344), (8, 8165840), (10, 6532672), (16, 4082920), (20, 3266336), (32, 2041460), (40, 1633168), (64, 1020730), (80, 816584), (103, 634240), (128, 510365), (160, 408292), (206, 317120), (320, 204146), (412, 158560), (515, 126848), (640, 102073), (824, 79280), (991, 65920), (1030, 63424), (1648, 39640), (1982, 32960), (2060, 31712), (3296, 19820), (3964, 16480), (4120, 15856), (4955, 13184), (6592, 9910), (7928, 8240)]