18018280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{317}}^1$

素因数の和:371

約数の個数: 96

約数和(自身を含む): 48940200

約数和(自身を除く): 30921920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 49, 56, 58, 70, 98, 116, 140, 145, 196, 203, 232, 245, 280, 290, 317, 392, 406, 490, 580, 634, 812, 980, 1015, 1160, 1268, 1421, 1585, 1624, 1960, 2030, 2219, 2536, 2842, 3170, 4060, 4438, 5684, 6340, 7105, 8120, 8876, 9193, 11095, 11368, 12680, 14210, 15533, 17752, 18386, 22190, 28420, 31066, 36772, 44380, 45965, 56840, 62132, 64351, 73544, 77665, 88760, 91930, 124264, 128702, 155330, 183860, 257404, 310660, 321755, 367720, 450457, 514808, 621320, 643510, 900914, 1287020, 1801828, 2252285, 2574040, 3603656, 4504570, 9009140, 18018280]

約数ペア:

[(1, 18018280), (2, 9009140), (4, 4504570), (5, 3603656), (7, 2574040), (8, 2252285), (10, 1801828), (14, 1287020), (20, 900914), (28, 643510), (29, 621320), (35, 514808), (40, 450457), (49, 367720), (56, 321755), (58, 310660), (70, 257404), (98, 183860), (116, 155330), (140, 128702), (145, 124264), (196, 91930), (203, 88760), (232, 77665), (245, 73544), (280, 64351), (290, 62132), (317, 56840), (392, 45965), (406, 44380), (490, 36772), (580, 31066), (634, 28420), (812, 22190), (980, 18386), (1015, 17752), (1160, 15533), (1268, 14210), (1421, 12680), (1585, 11368), (1624, 11095), (1960, 9193), (2030, 8876), (2219, 8120), (2536, 7105), (2842, 6340), (3170, 5684), (4060, 4438)]