78739000

素因数分解:

$2^3\times 5^3\times {\mathrm{71}}^1\times {\mathrm{1109}}^1$

素因数の和:1201

約数の個数: 64

約数和(自身を含む): 187012800

約数和(自身を除く): 108273800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 125, 142, 200, 250, 284, 355, 500, 568, 710, 1000, 1109, 1420, 1775, 2218, 2840, 3550, 4436, 5545, 7100, 8872, 8875, 11090, 14200, 17750, 22180, 27725, 35500, 44360, 55450, 71000, 78739, 110900, 138625, 157478, 221800, 277250, 314956, 393695, 554500, 629912, 787390, 1109000, 1574780, 1968475, 3149560, 3936950, 7873900, 9842375, 15747800, 19684750, 39369500, 78739000]

約数ペア:

[(1, 78739000), (2, 39369500), (4, 19684750), (5, 15747800), (8, 9842375), (10, 7873900), (20, 3936950), (25, 3149560), (40, 1968475), (50, 1574780), (71, 1109000), (100, 787390), (125, 629912), (142, 554500), (200, 393695), (250, 314956), (284, 277250), (355, 221800), (500, 157478), (568, 138625), (710, 110900), (1000, 78739), (1109, 71000), (1420, 55450), (1775, 44360), (2218, 35500), (2840, 27725), (3550, 22180), (4436, 17750), (5545, 14200), (7100, 11090), (8872, 8875)]