78538438

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:122

約数の個数: 72

約数和(自身を含む): 145938240

約数和(自身を除く): 67399802

約数列:

[1, 2, 11, 19, 22, 29, 31, 38, 58, 62, 121, 209, 242, 319, 341, 361, 418, 551, 589, 638, 682, 722, 899, 1102, 1178, 1798, 2299, 3509, 3751, 3971, 4598, 6061, 6479, 7018, 7502, 7942, 9889, 10469, 11191, 12122, 12958, 17081, 19778, 20938, 22382, 34162, 43681, 66671, 71269, 87362, 108779, 115159, 123101, 133342, 142538, 187891, 217558, 230318, 246202, 324539, 375782, 649078, 1266749, 1354111, 2066801, 2533498, 2708222, 3569929, 4133602, 7139858, 39269219, 78538438]

約数ペア:

[(1, 78538438), (2, 39269219), (11, 7139858), (19, 4133602), (22, 3569929), (29, 2708222), (31, 2533498), (38, 2066801), (58, 1354111), (62, 1266749), (121, 649078), (209, 375782), (242, 324539), (319, 246202), (341, 230318), (361, 217558), (418, 187891), (551, 142538), (589, 133342), (638, 123101), (682, 115159), (722, 108779), (899, 87362), (1102, 71269), (1178, 66671), (1798, 43681), (2299, 34162), (3509, 22382), (3751, 20938), (3971, 19778), (4598, 17081), (6061, 12958), (6479, 12122), (7018, 11191), (7502, 10469), (7942, 9889)]