81748836

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4721}}^1$

素因数の和:4781

約数の個数: 72

約数和(自身を含む): 228601464

約数和(自身を除く): 146852628

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 37, 39, 52, 74, 78, 111, 117, 148, 156, 222, 234, 333, 444, 468, 481, 666, 962, 1332, 1443, 1924, 2886, 4329, 4721, 5772, 8658, 9442, 14163, 17316, 18884, 28326, 42489, 56652, 61373, 84978, 122746, 169956, 174677, 184119, 245492, 349354, 368238, 524031, 552357, 698708, 736476, 1048062, 1104714, 1572093, 2096124, 2209428, 2270801, 3144186, 4541602, 6288372, 6812403, 9083204, 13624806, 20437209, 27249612, 40874418, 81748836]

約数ペア:

[(1, 81748836), (2, 40874418), (3, 27249612), (4, 20437209), (6, 13624806), (9, 9083204), (12, 6812403), (13, 6288372), (18, 4541602), (26, 3144186), (36, 2270801), (37, 2209428), (39, 2096124), (52, 1572093), (74, 1104714), (78, 1048062), (111, 736476), (117, 698708), (148, 552357), (156, 524031), (222, 368238), (234, 349354), (333, 245492), (444, 184119), (468, 174677), (481, 169956), (666, 122746), (962, 84978), (1332, 61373), (1443, 56652), (1924, 42489), (2886, 28326), (4329, 18884), (4721, 17316), (5772, 14163), (8658, 9442)]