20355584

素因数分解:

$2^9\times {\mathrm{83}}^1\times {\mathrm{479}}^1$

素因数の和:580

約数の個数: 40

約数和(自身を含む): 41247360

約数和(自身を除く): 20891776

約数列:

[1, 2, 4, 8, 16, 32, 64, 83, 128, 166, 256, 332, 479, 512, 664, 958, 1328, 1916, 2656, 3832, 5312, 7664, 10624, 15328, 21248, 30656, 39757, 42496, 61312, 79514, 122624, 159028, 245248, 318056, 636112, 1272224, 2544448, 5088896, 10177792, 20355584]

約数ペア:

[(1, 20355584), (2, 10177792), (4, 5088896), (8, 2544448), (16, 1272224), (32, 636112), (64, 318056), (83, 245248), (128, 159028), (166, 122624), (256, 79514), (332, 61312), (479, 42496), (512, 39757), (664, 30656), (958, 21248), (1328, 15328), (1916, 10624), (2656, 7664), (3832, 5312)]