80908640

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:304

約数の個数: 96

約数和(自身を含む): 199946880

約数和(自身を除く): 119038240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 79, 80, 148, 158, 160, 173, 185, 296, 316, 346, 370, 395, 592, 632, 692, 740, 790, 865, 1184, 1264, 1384, 1480, 1580, 1730, 2528, 2768, 2923, 2960, 3160, 3460, 5536, 5846, 5920, 6320, 6401, 6920, 11692, 12640, 12802, 13667, 13840, 14615, 23384, 25604, 27334, 27680, 29230, 32005, 46768, 51208, 54668, 58460, 64010, 68335, 93536, 102416, 109336, 116920, 128020, 136670, 204832, 218672, 233840, 256040, 273340, 437344, 467680, 505679, 512080, 546680, 1011358, 1024160, 1093360, 2022716, 2186720, 2528395, 4045432, 5056790, 8090864, 10113580, 16181728, 20227160, 40454320, 80908640]

約数ペア:

[(1, 80908640), (2, 40454320), (4, 20227160), (5, 16181728), (8, 10113580), (10, 8090864), (16, 5056790), (20, 4045432), (32, 2528395), (37, 2186720), (40, 2022716), (74, 1093360), (79, 1024160), (80, 1011358), (148, 546680), (158, 512080), (160, 505679), (173, 467680), (185, 437344), (296, 273340), (316, 256040), (346, 233840), (370, 218672), (395, 204832), (592, 136670), (632, 128020), (692, 116920), (740, 109336), (790, 102416), (865, 93536), (1184, 68335), (1264, 64010), (1384, 58460), (1480, 54668), (1580, 51208), (1730, 46768), (2528, 32005), (2768, 29230), (2923, 27680), (2960, 27334), (3160, 25604), (3460, 23384), (5536, 14615), (5846, 13840), (5920, 13667), (6320, 12802), (6401, 12640), (6920, 11692)]