25870625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 40

約数和(自身を含む): 36438336

約数和(自身を除く): 10567711

約数列:

[1, 5, 11, 25, 53, 55, 71, 125, 265, 275, 355, 583, 625, 781, 1325, 1375, 1775, 2915, 3763, 3905, 6625, 6875, 8875, 14575, 18815, 19525, 33125, 41393, 44375, 72875, 94075, 97625, 206965, 364375, 470375, 488125, 1034825, 2351875, 5174125, 25870625]

約数ペア:

[(1, 25870625), (5, 5174125), (11, 2351875), (25, 1034825), (53, 488125), (55, 470375), (71, 364375), (125, 206965), (265, 97625), (275, 94075), (355, 72875), (583, 44375), (625, 41393), (781, 33125), (1325, 19525), (1375, 18815), (1775, 14575), (2915, 8875), (3763, 6875), (3905, 6625)]