20715156

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:131

約数の個数: 192

約数和(自身を含む): 69672960

約数和(自身を除く): 48957804

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 44, 47, 53, 54, 63, 66, 77, 84, 94, 99, 106, 108, 126, 132, 141, 154, 159, 188, 189, 198, 212, 231, 252, 282, 297, 308, 318, 329, 371, 378, 396, 423, 462, 477, 517, 564, 583, 594, 636, 658, 693, 742, 756, 846, 924, 954, 987, 1034, 1113, 1166, 1188, 1269, 1316, 1386, 1431, 1484, 1551, 1692, 1749, 1908, 1974, 2068, 2079, 2226, 2332, 2491, 2538, 2772, 2862, 2961, 3102, 3339, 3498, 3619, 3948, 4081, 4158, 4452, 4653, 4982, 5076, 5247, 5724, 5922, 6204, 6678, 6996, 7238, 7473, 8162, 8316, 8883, 9306, 9964, 10017, 10494, 10857, 11844, 12243, 13356, 13959, 14476, 14946, 15741, 16324, 17437, 17766, 18612, 20034, 20988, 21714, 22419, 24486, 27401, 27918, 29892, 31482, 32571, 34874, 35532, 36729, 40068, 43428, 44838, 48972, 52311, 54802, 55836, 62964, 65142, 67257, 69748, 73458, 82203, 89676, 97713, 104622, 109604, 110187, 130284, 134514, 146916, 156933, 164406, 191807, 195426, 209244, 220374, 246609, 269028, 313866, 328812, 383614, 390852, 440748, 470799, 493218, 575421, 627732, 739827, 767228, 941598, 986436, 1150842, 1479654, 1726263, 1883196, 2301684, 2959308, 3452526, 5178789, 6905052, 10357578, 20715156]

約数ペア:

[(1, 20715156), (2, 10357578), (3, 6905052), (4, 5178789), (6, 3452526), (7, 2959308), (9, 2301684), (11, 1883196), (12, 1726263), (14, 1479654), (18, 1150842), (21, 986436), (22, 941598), (27, 767228), (28, 739827), (33, 627732), (36, 575421), (42, 493218), (44, 470799), (47, 440748), (53, 390852), (54, 383614), (63, 328812), (66, 313866), (77, 269028), (84, 246609), (94, 220374), (99, 209244), (106, 195426), (108, 191807), (126, 164406), (132, 156933), (141, 146916), (154, 134514), (159, 130284), (188, 110187), (189, 109604), (198, 104622), (212, 97713), (231, 89676), (252, 82203), (282, 73458), (297, 69748), (308, 67257), (318, 65142), (329, 62964), (371, 55836), (378, 54802), (396, 52311), (423, 48972), (462, 44838), (477, 43428), (517, 40068), (564, 36729), (583, 35532), (594, 34874), (636, 32571), (658, 31482), (693, 29892), (742, 27918), (756, 27401), (846, 24486), (924, 22419), (954, 21714), (987, 20988), (1034, 20034), (1113, 18612), (1166, 17766), (1188, 17437), (1269, 16324), (1316, 15741), (1386, 14946), (1431, 14476), (1484, 13959), (1551, 13356), (1692, 12243), (1749, 11844), (1908, 10857), (1974, 10494), (2068, 10017), (2079, 9964), (2226, 9306), (2332, 8883), (2491, 8316), (2538, 8162), (2772, 7473), (2862, 7238), (2961, 6996), (3102, 6678), (3339, 6204), (3498, 5922), (3619, 5724), (3948, 5247), (4081, 5076), (4158, 4982), (4452, 4653)]