20515703754

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{2311}}^1$

素因数の和:2636

約数の個数: 128

約数和(自身を含む): 51457351680

約数和(自身を除く): 30941647926

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 71, 78, 91, 142, 182, 213, 229, 273, 426, 458, 497, 546, 687, 923, 994, 1374, 1491, 1603, 1846, 2311, 2769, 2977, 2982, 3206, 4622, 4809, 5538, 5954, 6461, 6933, 8931, 9618, 12922, 13866, 16177, 16259, 17862, 19383, 20839, 30043, 32354, 32518, 38766, 41678, 48531, 48777, 60086, 62517, 90129, 97062, 97554, 113813, 125034, 164081, 180258, 210301, 211367, 227626, 328162, 341439, 420602, 422734, 492243, 529219, 630903, 634101, 682878, 984486, 1058438, 1148567, 1261806, 1268202, 1479569, 1587657, 2133053, 2297134, 2959138, 3175314, 3445701, 3704533, 4266106, 4438707, 6399159, 6879847, 6891402, 7409066, 8877414, 11113599, 12798318, 13759694, 14931371, 20639541, 22227198, 29862742, 37574549, 41279082, 44794113, 48158929, 75149098, 89588226, 96317858, 112723647, 144476787, 225447294, 263021843, 288953574, 488469137, 526043686, 789065529, 976938274, 1465407411, 1578131058, 2930814822, 3419283959, 6838567918, 10257851877, 20515703754]

約数ペア:

[(1, 20515703754), (2, 10257851877), (3, 6838567918), (6, 3419283959), (7, 2930814822), (13, 1578131058), (14, 1465407411), (21, 976938274), (26, 789065529), (39, 526043686), (42, 488469137), (71, 288953574), (78, 263021843), (91, 225447294), (142, 144476787), (182, 112723647), (213, 96317858), (229, 89588226), (273, 75149098), (426, 48158929), (458, 44794113), (497, 41279082), (546, 37574549), (687, 29862742), (923, 22227198), (994, 20639541), (1374, 14931371), (1491, 13759694), (1603, 12798318), (1846, 11113599), (2311, 8877414), (2769, 7409066), (2977, 6891402), (2982, 6879847), (3206, 6399159), (4622, 4438707), (4809, 4266106), (5538, 3704533), (5954, 3445701), (6461, 3175314), (6933, 2959138), (8931, 2297134), (9618, 2133053), (12922, 1587657), (13866, 1479569), (16177, 1268202), (16259, 1261806), (17862, 1148567), (19383, 1058438), (20839, 984486), (30043, 682878), (32354, 634101), (32518, 630903), (38766, 529219), (41678, 492243), (48531, 422734), (48777, 420602), (60086, 341439), (62517, 328162), (90129, 227626), (97062, 211367), (97554, 210301), (113813, 180258), (125034, 164081)]