20688912

素因数分解:

$2^4\times 3^3\times {\mathrm{83}}^1\times {\mathrm{577}}^1$

素因数の和:677

約数の個数: 80

約数和(自身を含む): 60204480

約数和(自身を除く): 39515568

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 83, 108, 144, 166, 216, 249, 332, 432, 498, 577, 664, 747, 996, 1154, 1328, 1494, 1731, 1992, 2241, 2308, 2988, 3462, 3984, 4482, 4616, 5193, 5976, 6924, 8964, 9232, 10386, 11952, 13848, 15579, 17928, 20772, 27696, 31158, 35856, 41544, 47891, 62316, 83088, 95782, 124632, 143673, 191564, 249264, 287346, 383128, 431019, 574692, 766256, 862038, 1149384, 1293057, 1724076, 2298768, 2586114, 3448152, 5172228, 6896304, 10344456, 20688912]

約数ペア:

[(1, 20688912), (2, 10344456), (3, 6896304), (4, 5172228), (6, 3448152), (8, 2586114), (9, 2298768), (12, 1724076), (16, 1293057), (18, 1149384), (24, 862038), (27, 766256), (36, 574692), (48, 431019), (54, 383128), (72, 287346), (83, 249264), (108, 191564), (144, 143673), (166, 124632), (216, 95782), (249, 83088), (332, 62316), (432, 47891), (498, 41544), (577, 35856), (664, 31158), (747, 27696), (996, 20772), (1154, 17928), (1328, 15579), (1494, 13848), (1731, 11952), (1992, 10386), (2241, 9232), (2308, 8964), (2988, 6924), (3462, 5976), (3984, 5193), (4482, 4616)]