28438644

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{379}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 73990560

約数和(自身を除く): 45551916

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 74, 78, 111, 148, 156, 169, 222, 338, 379, 444, 481, 507, 676, 758, 962, 1014, 1137, 1443, 1516, 1924, 2028, 2274, 2886, 4548, 4927, 5772, 6253, 9854, 12506, 14023, 14781, 18759, 19708, 25012, 28046, 29562, 37518, 42069, 56092, 59124, 64051, 75036, 84138, 128102, 168276, 182299, 192153, 256204, 364598, 384306, 546897, 729196, 768612, 1093794, 2187588, 2369887, 4739774, 7109661, 9479548, 14219322, 28438644]

約数ペア:

[(1, 28438644), (2, 14219322), (3, 9479548), (4, 7109661), (6, 4739774), (12, 2369887), (13, 2187588), (26, 1093794), (37, 768612), (39, 729196), (52, 546897), (74, 384306), (78, 364598), (111, 256204), (148, 192153), (156, 182299), (169, 168276), (222, 128102), (338, 84138), (379, 75036), (444, 64051), (481, 59124), (507, 56092), (676, 42069), (758, 37518), (962, 29562), (1014, 28046), (1137, 25012), (1443, 19708), (1516, 18759), (1924, 14781), (2028, 14023), (2274, 12506), (2886, 9854), (4548, 6253), (4927, 5772)]