640636204

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{467}}^1$

素因数の和:575

約数の個数: 96

約数和(自身を含む): 1338494976

約数和(自身を除く): 697858772

約数列:

[1, 2, 4, 13, 23, 26, 31, 37, 46, 52, 62, 74, 92, 124, 148, 299, 403, 467, 481, 598, 713, 806, 851, 934, 962, 1147, 1196, 1426, 1612, 1702, 1868, 1924, 2294, 2852, 3404, 4588, 6071, 9269, 10741, 11063, 12142, 14477, 14911, 17279, 18538, 21482, 22126, 24284, 26381, 28954, 29822, 34558, 37076, 42964, 44252, 52762, 57908, 59644, 69116, 105524, 139633, 188201, 224627, 279266, 332971, 342953, 376402, 397417, 449254, 535649, 558532, 665942, 685906, 752804, 794834, 898508, 1071298, 1331884, 1371812, 1589668, 2142596, 4328623, 5166421, 6963437, 8657246, 10332842, 12319927, 13926874, 17314492, 20665684, 24639854, 27853748, 49279708, 160159051, 320318102, 640636204]

約数ペア:

[(1, 640636204), (2, 320318102), (4, 160159051), (13, 49279708), (23, 27853748), (26, 24639854), (31, 20665684), (37, 17314492), (46, 13926874), (52, 12319927), (62, 10332842), (74, 8657246), (92, 6963437), (124, 5166421), (148, 4328623), (299, 2142596), (403, 1589668), (467, 1371812), (481, 1331884), (598, 1071298), (713, 898508), (806, 794834), (851, 752804), (934, 685906), (962, 665942), (1147, 558532), (1196, 535649), (1426, 449254), (1612, 397417), (1702, 376402), (1868, 342953), (1924, 332971), (2294, 279266), (2852, 224627), (3404, 188201), (4588, 139633), (6071, 105524), (9269, 69116), (10741, 59644), (11063, 57908), (12142, 52762), (14477, 44252), (14911, 42964), (17279, 37076), (18538, 34558), (21482, 29822), (22126, 28954), (24284, 26381)]