20343612436

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{39301}}^1$

素因数の和:39477

約数の個数: 72

約数和(自身を含む): 43908194400

約数和(自身を除く): 23564581964

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 139, 196, 266, 278, 532, 556, 931, 973, 1862, 1946, 2641, 3724, 3892, 5282, 6811, 10564, 13622, 18487, 27244, 36974, 39301, 73948, 78602, 129409, 157204, 258818, 275107, 517636, 550214, 746719, 1100428, 1493438, 1925749, 2986876, 3851498, 5227033, 5462839, 7702996, 10454066, 10925678, 20908132, 21851356, 36589231, 38239873, 73178462, 76479746, 103793941, 146356924, 152959492, 207587882, 267679111, 415175764, 535358222, 726557587, 1070716444, 1453115174, 2906230348, 5085903109, 10171806218, 20343612436]

約数ペア:

[(1, 20343612436), (2, 10171806218), (4, 5085903109), (7, 2906230348), (14, 1453115174), (19, 1070716444), (28, 726557587), (38, 535358222), (49, 415175764), (76, 267679111), (98, 207587882), (133, 152959492), (139, 146356924), (196, 103793941), (266, 76479746), (278, 73178462), (532, 38239873), (556, 36589231), (931, 21851356), (973, 20908132), (1862, 10925678), (1946, 10454066), (2641, 7702996), (3724, 5462839), (3892, 5227033), (5282, 3851498), (6811, 2986876), (10564, 1925749), (13622, 1493438), (18487, 1100428), (27244, 746719), (36974, 550214), (39301, 517636), (73948, 275107), (78602, 258818), (129409, 157204)]