1987380738

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{74051}}^1$

素因数の和:74140

約数の個数: 64

約数和(自身を含む): 5118474240

約数和(自身を除く): 3131093502

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 126, 142, 189, 213, 378, 426, 497, 639, 994, 1278, 1491, 1917, 2982, 3834, 4473, 8946, 13419, 26838, 74051, 148102, 222153, 444306, 518357, 666459, 1036714, 1332918, 1555071, 1999377, 3110142, 3998754, 4665213, 5257621, 9330426, 10515242, 13995639, 15772863, 27991278, 31545726, 36803347, 47318589, 73606694, 94637178, 110410041, 141955767, 220820082, 283911534, 331230123, 662460246, 993690369, 1987380738]

約数ペア:

[(1, 1987380738), (2, 993690369), (3, 662460246), (6, 331230123), (7, 283911534), (9, 220820082), (14, 141955767), (18, 110410041), (21, 94637178), (27, 73606694), (42, 47318589), (54, 36803347), (63, 31545726), (71, 27991278), (126, 15772863), (142, 13995639), (189, 10515242), (213, 9330426), (378, 5257621), (426, 4665213), (497, 3998754), (639, 3110142), (994, 1999377), (1278, 1555071), (1491, 1332918), (1917, 1036714), (2982, 666459), (3834, 518357), (4473, 444306), (8946, 222153), (13419, 148102), (26838, 74051)]