408045875

素因数分解:

$5^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1999}}^1$

素因数の和:2108

約数の個数: 32

約数和(自身を含む): 539136000

約数和(自身を除く): 131090125

約数列:

[1, 5, 23, 25, 71, 115, 125, 355, 575, 1633, 1775, 1999, 2875, 8165, 8875, 9995, 40825, 45977, 49975, 141929, 204125, 229885, 249875, 709645, 1149425, 3264367, 3548225, 5747125, 16321835, 17741125, 81609175, 408045875]

約数ペア:

[(1, 408045875), (5, 81609175), (23, 17741125), (25, 16321835), (71, 5747125), (115, 3548225), (125, 3264367), (355, 1149425), (575, 709645), (1633, 249875), (1775, 229885), (1999, 204125), (2875, 141929), (8165, 49975), (8875, 45977), (9995, 40825)]