20803383280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{8388461}}^1$

素因数の和:8388505

約数の個数: 40

約数和(自身を含む): 49928125824

約数和(自身を除く): 29124742544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 8388461, 16776922, 33553844, 41942305, 67107688, 83884610, 134215376, 167769220, 260042291, 335538440, 520084582, 671076880, 1040169164, 1300211455, 2080338328, 2600422910, 4160676656, 5200845820, 10401691640, 20803383280]

約数ペア:

[(1, 20803383280), (2, 10401691640), (4, 5200845820), (5, 4160676656), (8, 2600422910), (10, 2080338328), (16, 1300211455), (20, 1040169164), (31, 671076880), (40, 520084582), (62, 335538440), (80, 260042291), (124, 167769220), (155, 134215376), (248, 83884610), (310, 67107688), (496, 41942305), (620, 33553844), (1240, 16776922), (2480, 8388461)]