31489458

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:157

約数の個数: 128

約数和(自身を含む): 87091200

約数和(自身を除く): 55601742

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 49, 66, 77, 78, 91, 98, 107, 143, 147, 154, 182, 214, 231, 273, 286, 294, 321, 343, 429, 462, 539, 546, 637, 642, 686, 749, 858, 1001, 1029, 1078, 1177, 1274, 1391, 1498, 1617, 1911, 2002, 2058, 2247, 2354, 2782, 3003, 3234, 3531, 3773, 3822, 4173, 4459, 4494, 5243, 6006, 7007, 7062, 7546, 8239, 8346, 8918, 9737, 10486, 11319, 13377, 14014, 15301, 15729, 16478, 19474, 21021, 22638, 24717, 26754, 29211, 30602, 31458, 36701, 42042, 45903, 49049, 49434, 57673, 58422, 68159, 73402, 91806, 98098, 107107, 110103, 115346, 136318, 147147, 173019, 204477, 214214, 220206, 294294, 321321, 346038, 403711, 408954, 477113, 642642, 749749, 807422, 954226, 1211133, 1431339, 1499498, 2249247, 2422266, 2862678, 4498494, 5248243, 10496486, 15744729, 31489458]

約数ペア:

[(1, 31489458), (2, 15744729), (3, 10496486), (6, 5248243), (7, 4498494), (11, 2862678), (13, 2422266), (14, 2249247), (21, 1499498), (22, 1431339), (26, 1211133), (33, 954226), (39, 807422), (42, 749749), (49, 642642), (66, 477113), (77, 408954), (78, 403711), (91, 346038), (98, 321321), (107, 294294), (143, 220206), (147, 214214), (154, 204477), (182, 173019), (214, 147147), (231, 136318), (273, 115346), (286, 110103), (294, 107107), (321, 98098), (343, 91806), (429, 73402), (462, 68159), (539, 58422), (546, 57673), (637, 49434), (642, 49049), (686, 45903), (749, 42042), (858, 36701), (1001, 31458), (1029, 30602), (1078, 29211), (1177, 26754), (1274, 24717), (1391, 22638), (1498, 21021), (1617, 19474), (1911, 16478), (2002, 15729), (2058, 15301), (2247, 14014), (2354, 13377), (2782, 11319), (3003, 10486), (3234, 9737), (3531, 8918), (3773, 8346), (3822, 8239), (4173, 7546), (4459, 7062), (4494, 7007), (5243, 6006)]