19930328

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 43718400

約数和(自身を除く): 23788072

約数列:

[1, 2, 4, 8, 11, 22, 23, 43, 44, 46, 86, 88, 92, 172, 184, 229, 253, 344, 458, 473, 506, 916, 946, 989, 1012, 1832, 1892, 1978, 2024, 2519, 3784, 3956, 5038, 5267, 7912, 9847, 10076, 10534, 10879, 19694, 20152, 21068, 21758, 39388, 42136, 43516, 57937, 78776, 87032, 108317, 115874, 216634, 226481, 231748, 433268, 452962, 463496, 866536, 905924, 1811848, 2491291, 4982582, 9965164, 19930328]

約数ペア:

[(1, 19930328), (2, 9965164), (4, 4982582), (8, 2491291), (11, 1811848), (22, 905924), (23, 866536), (43, 463496), (44, 452962), (46, 433268), (86, 231748), (88, 226481), (92, 216634), (172, 115874), (184, 108317), (229, 87032), (253, 78776), (344, 57937), (458, 43516), (473, 42136), (506, 39388), (916, 21758), (946, 21068), (989, 20152), (1012, 19694), (1832, 10879), (1892, 10534), (1978, 10076), (2024, 9847), (2519, 7912), (3784, 5267), (3956, 5038)]