20761279480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2837}}^1\times {\mathrm{9629}}^1$

素因数の和:12496

約数の個数: 64

約数和(自身を含む): 49193892000

約数和(自身を除く): 28432612520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 2837, 5674, 9629, 11348, 14185, 19258, 22696, 28370, 38516, 48145, 53903, 56740, 77032, 96290, 107806, 113480, 182951, 192580, 215612, 269515, 365902, 385160, 431224, 539030, 731804, 914755, 1078060, 1463608, 1829510, 2156120, 3659020, 7318040, 27317473, 54634946, 109269892, 136587365, 218539784, 273174730, 519031987, 546349460, 1038063974, 1092698920, 2076127948, 2595159935, 4152255896, 5190319870, 10380639740, 20761279480]

約数ペア:

[(1, 20761279480), (2, 10380639740), (4, 5190319870), (5, 4152255896), (8, 2595159935), (10, 2076127948), (19, 1092698920), (20, 1038063974), (38, 546349460), (40, 519031987), (76, 273174730), (95, 218539784), (152, 136587365), (190, 109269892), (380, 54634946), (760, 27317473), (2837, 7318040), (5674, 3659020), (9629, 2156120), (11348, 1829510), (14185, 1463608), (19258, 1078060), (22696, 914755), (28370, 731804), (38516, 539030), (48145, 431224), (53903, 385160), (56740, 365902), (77032, 269515), (96290, 215612), (107806, 192580), (113480, 182951)]