399888902

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:226

約数の個数: 96

約数和(自身を含む): 772208640

約数和(自身を除く): 372319738

約数列:

[1, 2, 7, 14, 23, 31, 46, 49, 59, 62, 97, 98, 118, 161, 194, 217, 322, 413, 434, 679, 713, 826, 1127, 1357, 1358, 1426, 1519, 1829, 2231, 2254, 2714, 2891, 3007, 3038, 3658, 4462, 4753, 4991, 5723, 5782, 6014, 9499, 9506, 9982, 11446, 12803, 15617, 18998, 21049, 25606, 31234, 34937, 40061, 42067, 42098, 66493, 69161, 69874, 80122, 84134, 89621, 109319, 131629, 132986, 138322, 147343, 177413, 179242, 218638, 263258, 280427, 294469, 294686, 354826, 484127, 560854, 588938, 921403, 968254, 1241891, 1842806, 2061283, 2483782, 3388889, 4080499, 4122566, 6449821, 6777778, 8160998, 8693237, 12899642, 17386474, 28563493, 57126986, 199944451, 399888902]

約数ペア:

[(1, 399888902), (2, 199944451), (7, 57126986), (14, 28563493), (23, 17386474), (31, 12899642), (46, 8693237), (49, 8160998), (59, 6777778), (62, 6449821), (97, 4122566), (98, 4080499), (118, 3388889), (161, 2483782), (194, 2061283), (217, 1842806), (322, 1241891), (413, 968254), (434, 921403), (679, 588938), (713, 560854), (826, 484127), (1127, 354826), (1357, 294686), (1358, 294469), (1426, 280427), (1519, 263258), (1829, 218638), (2231, 179242), (2254, 177413), (2714, 147343), (2891, 138322), (3007, 132986), (3038, 131629), (3658, 109319), (4462, 89621), (4753, 84134), (4991, 80122), (5723, 69874), (5782, 69161), (6014, 66493), (9499, 42098), (9506, 42067), (9982, 40061), (11446, 34937), (12803, 31234), (15617, 25606), (18998, 21049)]