80728480

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{1471}}^1$

素因数の和:1507

約数の個数: 96

約数和(自身を含む): 222566400

約数和(自身を除く): 141837920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1120, 1372, 1471, 1568, 1715, 1960, 2744, 2942, 3430, 3920, 5488, 5884, 6860, 7355, 7840, 10297, 10976, 11768, 13720, 14710, 20594, 23536, 27440, 29420, 41188, 47072, 51485, 54880, 58840, 72079, 82376, 102970, 117680, 144158, 164752, 205940, 235360, 288316, 329504, 360395, 411880, 504553, 576632, 720790, 823760, 1009106, 1153264, 1441580, 1647520, 2018212, 2306528, 2522765, 2883160, 4036424, 5045530, 5766320, 8072848, 10091060, 11532640, 16145696, 20182120, 40364240, 80728480]

約数ペア:

[(1, 80728480), (2, 40364240), (4, 20182120), (5, 16145696), (7, 11532640), (8, 10091060), (10, 8072848), (14, 5766320), (16, 5045530), (20, 4036424), (28, 2883160), (32, 2522765), (35, 2306528), (40, 2018212), (49, 1647520), (56, 1441580), (70, 1153264), (80, 1009106), (98, 823760), (112, 720790), (140, 576632), (160, 504553), (196, 411880), (224, 360395), (245, 329504), (280, 288316), (343, 235360), (392, 205940), (490, 164752), (560, 144158), (686, 117680), (784, 102970), (980, 82376), (1120, 72079), (1372, 58840), (1471, 54880), (1568, 51485), (1715, 47072), (1960, 41188), (2744, 29420), (2942, 27440), (3430, 23536), (3920, 20594), (5488, 14710), (5884, 13720), (6860, 11768), (7355, 10976), (7840, 10297)]