71121920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{29}}^1\times {\mathrm{479}}^1$

素因数の和:533

約数の個数: 88

約数和(自身を含む): 176860800

約数和(自身を除く): 105738880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 464, 479, 512, 580, 640, 928, 958, 1024, 1160, 1280, 1856, 1916, 2320, 2395, 2560, 3712, 3832, 4640, 4790, 5120, 7424, 7664, 9280, 9580, 13891, 14848, 15328, 18560, 19160, 27782, 29696, 30656, 37120, 38320, 55564, 61312, 69455, 74240, 76640, 111128, 122624, 138910, 148480, 153280, 222256, 245248, 277820, 306560, 444512, 490496, 555640, 613120, 889024, 1111280, 1226240, 1778048, 2222560, 2452480, 3556096, 4445120, 7112192, 8890240, 14224384, 17780480, 35560960, 71121920]

約数ペア:

[(1, 71121920), (2, 35560960), (4, 17780480), (5, 14224384), (8, 8890240), (10, 7112192), (16, 4445120), (20, 3556096), (29, 2452480), (32, 2222560), (40, 1778048), (58, 1226240), (64, 1111280), (80, 889024), (116, 613120), (128, 555640), (145, 490496), (160, 444512), (232, 306560), (256, 277820), (290, 245248), (320, 222256), (464, 153280), (479, 148480), (512, 138910), (580, 122624), (640, 111128), (928, 76640), (958, 74240), (1024, 69455), (1160, 61312), (1280, 55564), (1856, 38320), (1916, 37120), (2320, 30656), (2395, 29696), (2560, 27782), (3712, 19160), (3832, 18560), (4640, 15328), (4790, 14848), (5120, 13891), (7424, 9580), (7664, 9280)]