80631680

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7411}}^1$

素因数の和:7447

約数の個数: 64

約数和(自身を含む): 204126480

約数和(自身を除く): 123494800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 272, 320, 340, 544, 640, 680, 1088, 1360, 2176, 2720, 5440, 7411, 10880, 14822, 29644, 37055, 59288, 74110, 118576, 125987, 148220, 237152, 251974, 296440, 474304, 503948, 592880, 629935, 948608, 1007896, 1185760, 1259870, 2015792, 2371520, 2519740, 4031584, 4743040, 5039480, 8063168, 10078960, 16126336, 20157920, 40315840, 80631680]

約数ペア:

[(1, 80631680), (2, 40315840), (4, 20157920), (5, 16126336), (8, 10078960), (10, 8063168), (16, 5039480), (17, 4743040), (20, 4031584), (32, 2519740), (34, 2371520), (40, 2015792), (64, 1259870), (68, 1185760), (80, 1007896), (85, 948608), (128, 629935), (136, 592880), (160, 503948), (170, 474304), (272, 296440), (320, 251974), (340, 237152), (544, 148220), (640, 125987), (680, 118576), (1088, 74110), (1360, 59288), (2176, 37055), (2720, 29644), (5440, 14822), (7411, 10880)]