20180457780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{227719}}^1$

素因数の和:227949

約数の個数: 96

約数和(自身を含む): 64883804160

約数和(自身を除く): 44703346380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 211, 420, 422, 633, 844, 1055, 1266, 1477, 2110, 2532, 2954, 3165, 4220, 4431, 5908, 6330, 7385, 8862, 12660, 14770, 17724, 22155, 29540, 44310, 88620, 227719, 455438, 683157, 910876, 1138595, 1366314, 1594033, 2277190, 2732628, 3188066, 3415785, 4554380, 4782099, 6376132, 6831570, 7970165, 9564198, 13663140, 15940330, 19128396, 23910495, 31880660, 47820990, 48048709, 95641980, 96097418, 144146127, 192194836, 240243545, 288292254, 336340963, 480487090, 576584508, 672681926, 720730635, 960974180, 1009022889, 1345363852, 1441461270, 1681704815, 2018045778, 2882922540, 3363409630, 4036091556, 5045114445, 6726819260, 10090228890, 20180457780]

約数ペア:

[(1, 20180457780), (2, 10090228890), (3, 6726819260), (4, 5045114445), (5, 4036091556), (6, 3363409630), (7, 2882922540), (10, 2018045778), (12, 1681704815), (14, 1441461270), (15, 1345363852), (20, 1009022889), (21, 960974180), (28, 720730635), (30, 672681926), (35, 576584508), (42, 480487090), (60, 336340963), (70, 288292254), (84, 240243545), (105, 192194836), (140, 144146127), (210, 96097418), (211, 95641980), (420, 48048709), (422, 47820990), (633, 31880660), (844, 23910495), (1055, 19128396), (1266, 15940330), (1477, 13663140), (2110, 9564198), (2532, 7970165), (2954, 6831570), (3165, 6376132), (4220, 4782099), (4431, 4554380), (5908, 3415785), (6330, 3188066), (7385, 2732628), (8862, 2277190), (12660, 1594033), (14770, 1366314), (17724, 1138595), (22155, 910876), (29540, 683157), (44310, 455438), (88620, 227719)]