2013977480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1\times {\mathrm{1823}}^1$

素因数の和:2294

約数の個数: 64

約数和(自身を含む): 4609612800

約数和(自身を除く): 2595635320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 389, 568, 710, 778, 1420, 1556, 1823, 1945, 2840, 3112, 3646, 3890, 7292, 7780, 9115, 14584, 15560, 18230, 27619, 36460, 55238, 72920, 110476, 129433, 138095, 220952, 258866, 276190, 517732, 552380, 647165, 709147, 1035464, 1104760, 1294330, 1418294, 2588660, 2836588, 3545735, 5177320, 5673176, 7091470, 14182940, 28365880, 50349437, 100698874, 201397748, 251747185, 402795496, 503494370, 1006988740, 2013977480]

約数ペア:

[(1, 2013977480), (2, 1006988740), (4, 503494370), (5, 402795496), (8, 251747185), (10, 201397748), (20, 100698874), (40, 50349437), (71, 28365880), (142, 14182940), (284, 7091470), (355, 5673176), (389, 5177320), (568, 3545735), (710, 2836588), (778, 2588660), (1420, 1418294), (1556, 1294330), (1823, 1104760), (1945, 1035464), (2840, 709147), (3112, 647165), (3646, 552380), (3890, 517732), (7292, 276190), (7780, 258866), (9115, 220952), (14584, 138095), (15560, 129433), (18230, 110476), (27619, 72920), (36460, 55238)]