19765952

素因数分解:

$2^6\times {\mathrm{61}}^2\times {\mathrm{83}}^1$

素因数の和:217

約数の個数: 42

約数和(自身を含む): 40357044

約数和(自身を除く): 20591092

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 83, 122, 166, 244, 332, 488, 664, 976, 1328, 1952, 2656, 3721, 3904, 5063, 5312, 7442, 10126, 14884, 20252, 29768, 40504, 59536, 81008, 119072, 162016, 238144, 308843, 324032, 617686, 1235372, 2470744, 4941488, 9882976, 19765952]

約数ペア:

[(1, 19765952), (2, 9882976), (4, 4941488), (8, 2470744), (16, 1235372), (32, 617686), (61, 324032), (64, 308843), (83, 238144), (122, 162016), (166, 119072), (244, 81008), (332, 59536), (488, 40504), (664, 29768), (976, 20252), (1328, 14884), (1952, 10126), (2656, 7442), (3721, 5312), (3904, 5063)]