20803857728

素因数分解:

$2^6\times {\mathrm{61}}^1\times {\mathrm{5328857}}^1$

素因数の和:5328930

約数の個数: 28

約数和(自身を含む): 41959427892

約数和(自身を除く): 21155570164

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 244, 488, 976, 1952, 3904, 5328857, 10657714, 21315428, 42630856, 85261712, 170523424, 325060277, 341046848, 650120554, 1300241108, 2600482216, 5200964432, 10401928864, 20803857728]

約数ペア:

[(1, 20803857728), (2, 10401928864), (4, 5200964432), (8, 2600482216), (16, 1300241108), (32, 650120554), (61, 341046848), (64, 325060277), (122, 170523424), (244, 85261712), (488, 42630856), (976, 21315428), (1952, 10657714), (3904, 5328857)]