12728750

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{599}}^1$

素因数の和:638

約数の個数: 40

約数和(自身を含む): 25304400

約数和(自身を除く): 12575650

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 599, 625, 850, 1198, 1250, 2125, 2995, 4250, 5990, 10183, 10625, 14975, 20366, 21250, 29950, 50915, 74875, 101830, 149750, 254575, 374375, 509150, 748750, 1272875, 2545750, 6364375, 12728750]

約数ペア:

[(1, 12728750), (2, 6364375), (5, 2545750), (10, 1272875), (17, 748750), (25, 509150), (34, 374375), (50, 254575), (85, 149750), (125, 101830), (170, 74875), (250, 50915), (425, 29950), (599, 21250), (625, 20366), (850, 14975), (1198, 10625), (1250, 10183), (2125, 5990), (2995, 4250)]