211452520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{278227}}^1$

素因数の和:278257

約数の個数: 32

約数和(自身を含む): 500810400

約数和(自身を除く): 289357880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 278227, 556454, 1112908, 1391135, 2225816, 2782270, 5286313, 5564540, 10572626, 11129080, 21145252, 26431565, 42290504, 52863130, 105726260, 211452520]

約数ペア:

[(1, 211452520), (2, 105726260), (4, 52863130), (5, 42290504), (8, 26431565), (10, 21145252), (19, 11129080), (20, 10572626), (38, 5564540), (40, 5286313), (76, 2782270), (95, 2225816), (152, 1391135), (190, 1112908), (380, 556454), (760, 278227)]