20350384

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{461}}^1$

素因数の和:589

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 20896976

約数列:

[1, 2, 4, 8, 16, 31, 62, 89, 124, 178, 248, 356, 461, 496, 712, 922, 1424, 1844, 2759, 3688, 5518, 7376, 11036, 14291, 22072, 28582, 41029, 44144, 57164, 82058, 114328, 164116, 228656, 328232, 656464, 1271899, 2543798, 5087596, 10175192, 20350384]

約数ペア:

[(1, 20350384), (2, 10175192), (4, 5087596), (8, 2543798), (16, 1271899), (31, 656464), (62, 328232), (89, 228656), (124, 164116), (178, 114328), (248, 82058), (356, 57164), (461, 44144), (496, 41029), (712, 28582), (922, 22072), (1424, 14291), (1844, 11036), (2759, 7376), (3688, 5518)]