280121912

素因数分解:

$2^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 610967040

約数和(自身を除く): 330845128

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 151, 157, 211, 302, 314, 422, 604, 628, 844, 1057, 1099, 1208, 1256, 1477, 1688, 2114, 2198, 2954, 4228, 4396, 5908, 8456, 8792, 11816, 23707, 31861, 33127, 47414, 63722, 66254, 94828, 127444, 132508, 165949, 189656, 223027, 231889, 254888, 265016, 331898, 446054, 463778, 663796, 892108, 927556, 1327592, 1784216, 1855112, 5002177, 10004354, 20008708, 35015239, 40017416, 70030478, 140060956, 280121912]

約数ペア:

[(1, 280121912), (2, 140060956), (4, 70030478), (7, 40017416), (8, 35015239), (14, 20008708), (28, 10004354), (56, 5002177), (151, 1855112), (157, 1784216), (211, 1327592), (302, 927556), (314, 892108), (422, 663796), (604, 463778), (628, 446054), (844, 331898), (1057, 265016), (1099, 254888), (1208, 231889), (1256, 223027), (1477, 189656), (1688, 165949), (2114, 132508), (2198, 127444), (2954, 94828), (4228, 66254), (4396, 63722), (5908, 47414), (8456, 33127), (8792, 31861), (11816, 23707)]