20512759689

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:260

約数の個数: 144

約数和(自身を含む): 34049695680

約数和(自身を除く): 13536935991

約数列:

[1, 3, 9, 19, 29, 43, 57, 61, 83, 87, 129, 171, 183, 249, 261, 361, 387, 549, 551, 747, 817, 1083, 1159, 1247, 1577, 1653, 1769, 2407, 2451, 2623, 3249, 3477, 3569, 3741, 4731, 4959, 5063, 5307, 7221, 7353, 7869, 10431, 10469, 10707, 11223, 14193, 15189, 15523, 15921, 21663, 22021, 23607, 23693, 29963, 31407, 32121, 33611, 45567, 45733, 46569, 49837, 66063, 67811, 71079, 76067, 89889, 94221, 96197, 100833, 103501, 137199, 139707, 146827, 149511, 198189, 203433, 213237, 217709, 228201, 269667, 288591, 302499, 310503, 411597, 440481, 448533, 450167, 610299, 638609, 653127, 684603, 865773, 868927, 931509, 946903, 1288409, 1321443, 1350501, 1445273, 1827743, 1915827, 1959381, 1966519, 2606781, 2789713, 2840709, 3865227, 4051503, 4136471, 4335819, 5483229, 5747481, 5899557, 6313561, 7820343, 8369139, 8522127, 11595681, 12409413, 13007457, 16449687, 17698671, 18940683, 25107417, 27460187, 37228239, 37363861, 53004547, 56822049, 78592949, 82380561, 112091583, 119957659, 159013641, 235778847, 247141683, 336274749, 359872977, 477040923, 707336541, 1079618931, 2279195521, 6837586563, 20512759689]

約数ペア:

[(1, 20512759689), (3, 6837586563), (9, 2279195521), (19, 1079618931), (29, 707336541), (43, 477040923), (57, 359872977), (61, 336274749), (83, 247141683), (87, 235778847), (129, 159013641), (171, 119957659), (183, 112091583), (249, 82380561), (261, 78592949), (361, 56822049), (387, 53004547), (549, 37363861), (551, 37228239), (747, 27460187), (817, 25107417), (1083, 18940683), (1159, 17698671), (1247, 16449687), (1577, 13007457), (1653, 12409413), (1769, 11595681), (2407, 8522127), (2451, 8369139), (2623, 7820343), (3249, 6313561), (3477, 5899557), (3569, 5747481), (3741, 5483229), (4731, 4335819), (4959, 4136471), (5063, 4051503), (5307, 3865227), (7221, 2840709), (7353, 2789713), (7869, 2606781), (10431, 1966519), (10469, 1959381), (10707, 1915827), (11223, 1827743), (14193, 1445273), (15189, 1350501), (15523, 1321443), (15921, 1288409), (21663, 946903), (22021, 931509), (23607, 868927), (23693, 865773), (29963, 684603), (31407, 653127), (32121, 638609), (33611, 610299), (45567, 450167), (45733, 448533), (46569, 440481), (49837, 411597), (66063, 310503), (67811, 302499), (71079, 288591), (76067, 269667), (89889, 228201), (94221, 217709), (96197, 213237), (100833, 203433), (103501, 198189), (137199, 149511), (139707, 146827)]